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Get access to files anywhere through secure cloud storage and file backup for your photos, videos, files and more with Google Drive.

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Get access to files anywhere through secure cloud storage and file backup for your photos, videos, files and more with Google Drive.

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Get access to files anywhere through secure cloud storage and file backup for your photos, videos, files and more with Google Drive.

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Get access to files anywhere through secure cloud storage and file backup for your photos, videos, files and more with Google Drive.

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PERFORMANCE TASK IN SCIENCE.    FRUIT SALAD

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PERFORMANCE TASK IN SCIENCE.    FRUIT SALAD

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HOME-BASED ACTIVITY     ELECTRON. CHEMICAL BONDS AND IONS.

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HOME-BASED ACTIVITY     ELECTRON. CHEMICAL BONDS AND IONS.

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Atom essay

Atoms make up everything around us from the air we breathe to food we eat and even the stars in the sky. The average layman does not know much about the atom but in this paper I will explain what and why they are.
The word atom comes from the Greek word meaning indivisible. The concept of the atom had its foundations in ancient Greece with Leucippe of Milet. In 420 B.C. his disciple Democrite of Abdere had the concept that atoms were particles in perpetual motion and were invisible because of their infinitely small size, indivisible, solid, eternal because they are perfect, surrounded by an empty space, and having an infinite number of shapes. His theory was exceptionally close to reality, being that it was 420B.C.
Today we know that each atom is made up of three parts, a proton, a neutron and an electron. These atoms combine to make compounds. The most basic atoms are called elements and cannot be broken down any more than they already are. There are currently 118 known elements 90 of them occurring naturally and the other 28 are man made. The elements combine in an infinitesimal amount of ways to make up every thing around us. Created in 1869 by Mendeldiev the periodic table of the elements is how we chart these elements. Each column on the periodic table is categorized by the amount of atoms in its elements outer field. Hydrogen, Lithium, and sodium all being in the same column on the table have the same amount of atoms in their outer field. Since the electrons in the outer field dictate the types of chemical reactions that an atom can have, the atoms in the same column have some of the same properties.

matter, both living and nonliving, is composed of basic structures called elements. There are only 92 naturally occurring elements. Elements are what they are because they cannot be broken down to substances with different properties.
Elements contain tiny particles called atoms. There is only one type of atom in each type of element. The three most stable parts of an atom are the proton, neutron and electrons. Protons and neutrons are located with the nucleus of an atom. Electrons move around the atom. Most of an atom is empty space.
Protons and electrons carry an electrical charge; protons have a positive electrical charge and neutrons have a negative electrical charge. When an atom is electrically neutral, the number of protons equals the number of electrons. The entire atom is held together by the electrical force between the positive nucleus and the negative electrons.

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HOME-BASED (LAST WEEK BEFORE THE  CHRISTMAS BREAK) 

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HOME-BASED (LAST WEEK BEFORE THE  CHRISTMAS BREAK) 

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1.Write the summary equation of photosynthesis. From this, point out of the products that are of great importance to the ecosystem
ANSWER: The process of photosynthesis is  6CO2 + 6H2O → C6H12O6 + 6O2. The importance of an ecosystem is that it provides space to plants and animals to interact with each other as well as their physical environment.

2. What do you think will happen  to the plant's production of high energy sugars if carbon dioxide is completely removed from the plant's environment?  Answer : If carbon dioxide is removed from a plant's environment, what would you expect to happen to the plants. More sugars will be produced.  Carbon dioxide does not affect the production of high-energy sugars in plants.

3. How can greenhouses increase the rate of photosynthesis? Answer: Greenhouses can have artificial light so that photosynthesis can continue beyond daylight hours, or at a higher than normal light intensity.

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REPORT ANSWER  IN ONE ITEM (pp. 47-48) by group

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REPORT ANSWER  IN ONE ITEM (pp. 47-48) by group

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Explanation:
note that 100% of all offspring are Rr, which is the genotype. Since the genotype for all offspring are the same, and the Rr genotype encodes a pink color, then 100% of the phenotypes will be pink (NOT red - remember that this is incomplete dominance).

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4.4 ACTIVITIES FACTORS AFFECTING THE RATE OF PHOTOSYNTHESIS.        Questions:

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4.4 ACTIVITIES FACTORS AFFECTING THE RATE OF PHOTOSYNTHESIS.        Questions:

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1. How can the intensity of light effects the rate of photosynthesis? Answer:
As light intensity increases, the rate of photosynthesis will increase as long as other factors are in adequate supply.
2. Explain the effect of hight carbon dioxide concentration to the rate of photosynthesis? Answer: Carbon dioxide - with water - is one of the reactants in photosynthesis. If the concentration of carbon dioxide is increased, the rate of photosynthesis will therefore increase. Again, at some point, a factor may become limiting.
3.In what way does temperature affects the rate of photosynthesis? Answer:
The higher the temperature then typically the greater the rate of photosynthesis, photosynthesis is a chemical reaction and the rate of most chemical reactions increases with temperature.
4.Explain how the availability of water increase or decrease the efficiency or photosynthesis?
Answer: The amount of water available to the plant will affect the rate of photosynthesis. If the plant does not have enough water, the plant's stomata will shut and the plant will be deprived of CO². ... Carbon dioxide concentration will directly affect the rate of photosynthesis as it is used in the photosynthesis reaction.

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QUESTIONS
1. What is the use of ethyl alcohol in the experiment?
ANSWER: Ethanol is an important industrial chemical; it is used as solvent in the synthesis of other organic chemical, and as additive to automative gasoline (forming a mixture known as a  gasohol)

2. What is the use of iodine in the experiment?
ANSWER: Using iodine to test for the presence of starch is a common experiment

3.What does the presence of blue-black color in leaf after covering it with iodine indicate?
ANSWER:  Iodine turns the leaf color blue-black

4. Explain what will happen to mankind if there no green plants at all?
ANSWER: When green plants make food, they give oxygen. Without plants animal would have no oxygen  to breath and would die

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QUESTIONS:
1. What will happen if plant do not have the green pigment Chlorophyll?
Answer: Therefore if a plant does not contain chlorophyll, it will not be able to use photosynthesis. Even though chlorophyll will always be seen as green, there are other pigments that leaves can have that are reddish that cover up the green color.
2. If the stomata will not open at all, what do you think will be it's effect?
Answer: There will be no exchange of gases if stomata is closed

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1. What goes do plants give off? Answer: oxygen
2. What gas do plant take in? Answer: carbon dioxide
3. What gas do animals give off? Answer: carbon dioxide
4. What gas do animals take in? Answer: oxygen

TABLE 1.

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1. State the 5 reasons why the mammoth elephant became extinct?
ANSWER: * Because of rising sea levels, a population of woolly mammoths became trapped on wrangel island And continued living until their demise about 3,700 years ago.
*There life-span was 60 years
*They were driven to Extinction by environmental factors
*There was his huge excess of what Looked like bad mutations in the genome of the mammoth from this island.
*Reasons  or due to overhunting by humans is controversial. Another hypothesis suggests mammoth  fell victim to an infectious disease.
2. Name as many human activities that threaten in BIODIVERSITY?
Answer: Deforestation, climate change, desertification, Human activities and Loss of habitat, pollution.
3. Create a comment about the human population in relation ecology
Answer:
The human population can no longer be allowed to grow in the same old uncontrolled way. If we do not take charge of our population size, then nature will do it for us.

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CHOOSE ONE;
3. Graphic organizer of 1
endagered Philippine species.

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Sex- linked, Sex- influenced, and Sex- Limited

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Sex- linked, Sex- influenced, and Sex- Limited

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Create a non-mendelian inheritance problem. Provide the solution and answer to the problem. Submit the screenshot of the problem and the answer.

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C. Create your own documentary About inheritance of traits. Write a 250-Word script.

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HOME-BASED ACTIVITY     Creat a DNA model with atleast 6  base pairs using recycled and available materials (papers, jelly, candies, clothespin) at home. Answer the following: what are the properties of the DNA molecule? Why is DNA important?

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HOME-BASED ACTIVITY     Creat a DNA model with atleast 6  base pairs using recycled and available materials (papers, jelly, candies, clothespin) at home. Answer the following: what are the properties of the DNA molecule? Why is DNA important?

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Please choose one disease only.
To show the prevention and detection of a disease of either the respiratory system or circulatory system. The learner may use only one method from the list below and upload his/ her output for a evaluation.

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DIRECTIONS: read and analyze the following questions. Apply what have you learned from this lesson.

1. Why is BIODIVERSITY is important?
Answer: Biodiversity is important to humans for many reasons. Ecological life support— biodiversity provides functioning ecosystems that supply oxygen, clean air and water, pollination of plants, pest control, wastewater treatment and many more.

2. The Philippines is Rich in terms of plants and animals. Why are plants and animals becoming endagered?
Answer:
Deforestation and urbanization combine to create two reasons why plants and animals become endagered.

3. What are the environmental problems that you have learned? Name atleast two. How can you solve these two problems?
Answer: Endagered species and population. how can I solve the endagered species  for me to solve this is Volunteer your time to protect the wildlife in your area. Educate myself and my family about  endangered species in your area. to solve population Proper policy on population growth. Make education entertaining, promote family planning.

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ACTIVITY# 4 ORGANIZER.    ENDAGERED SPECIES 

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ACTIVITY# 4 ORGANIZER.    ENDAGERED SPECIES 

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Read and analyze the question carefully. Answer each question to check if you can apply what you have learned from our lesson .

1. Why is secondhand smoke also pose health risk of non-smoker?
Asnwer: Because the non-smoker is inhaling the smoke that the smokers are releasing.

2. What do you think the reason why some people are engaged to addictive habitats such as cigarette smoking?
Answer:
It's because they already used it for how many years so it is very difficult to stop.

3. Supposed you have a relative or friend who is smoking. What can you suggest to him to quit smoking?
Answer: smoking cause illness and may damage your lungs. So instead of smoking you can doing some alternative thing like you can eat candy instead of he think his not feeling well.

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Objective:
1. Describe some endagered animal and plant species in the Philippines.
Answer: a) The tamaraw is a small, stocky buffalo. Adults are grayish-black in color, with a darker line running along the spine and white markings on the insides of the forelegs.
b) Dendrobium schuetzei an orchid species with white flowers.

2. Make a photo collage of the endagered plant and animal species in the Philippines.

3. Suggest some effective ways to save the endagered  plants and animals species.
Answer: a) Reduce your use of water in your home and garden so that animals that live in or near water can have a better chance of survival and don't harrass. (For animal)
b) plant native plants and never harvest threatened endagered plants. (For plants)

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ACTIVITY #1 search me on: BIODIVERSITY HUNT!
Objective: define BIODIVERSITY

GUIDE QUESTIONS:
1. How many words have you listed? What are the words?
ANSWER: 5, THE WORD ARE COMMUNITY, PLANTATION, BIODIVERSITY, CORAL REEF, POPULATION

2.  What is BIODIVERSITY?
Answer:
Biodiversity is the variety and variability of life on Earth. Biodiversity is typically a measure of variation at the genetic, species, and ecosystem level.

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Please watch the videos. Write your answers to the following questions.

1. How do the Circulatory and Respiratory System work together?
ANSWER: The Respiratory System works directly with the Circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.

2. Why is it important to take care of these body systems?
ANSWER: The Respiratory System work with the Circulatory System to provide this oxygen and to remove the waste products of metabolism. It also helps to regulate pH of the blood.

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1. To check your pulse over your cartorid artery, place your index and middle fingers on your neck to the side of your windpipe. When you feel your pulse, look at your watch and count the number of beats in 15 seconds. Multiply this number by 4 to get your heart rate per minute. Record.

2. Perform 20 jumping jacks then measure again the pulse of heart rate for 15 seconds. Multiply this number by 4 to get your Heart rate per minute. Record. How do you feel while doing this activity? Compare the two measurements.
ANSWER: 88 per minute
then 108 beat
It means that when i jumped my pulse beats FASTER than when i was sitting.

I feel good while doing this activity because now, I know how to do it.

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Directions: Read and Analyze each other statement. Write your answers on the answer sheets.

1. How does the structure of the capillaries compare of to that of.
ANSWER: The function of arteries and veins is to carry to blood over relatively long distances from one organ to another, whereas cappilaries form branching networks to carry the blood over relatively short distance within organs.

2. What are valves in the heart for?
ANSWER: The valves prevent the Backwards flow of blood. These valves are actual flaps that are located on each of the two ventricle (Lower chambers of the heart). They act As one-way inlets of blood on one side of a ventricle and one-way outlets of the blood on the other side of a ventricle.

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Activity# 2.3 The Respiratory System Working together with the Circulatory System

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Activity# 2.3 The Respiratory System Working together with the Circulatory System

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Questions

1. How do the heart and the lungs work together?
ANSWER: The heart and lungs work together to make sure the body has the oxygen-rich blood it needs to function properly.

2. Why is the blood from the heart should be transported to the lungs?
ANSWER: they need some way to get rid of carbon dioxide. The blood brings oxygen to the body cells and takes away their carbon dioxide. The blood that travels back to the heart and lungs it's dark red. It has picked up carbon dioxide from the body cells, and it has left most of it's oxygen with the cells.

3. How does the Respiratory System work together with Circulatory System?
ANSWER: The Respiratory System work directly with the Circulatory System to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.

APPLYING INQUIRY SKILLS  Rolando has a chest wound. The attending nurse notice that Rolando is breathing rapidly and gasping for breath. Why does Rolando's breathing rate increase? Why does he gasp?
ANSWER:
He desperate gasping for air is usually a symptom of the heart no longer circulating oxygenated blood, or there's an interruption of lung activity that's reducing oxygen intake.  If you see someone struggling to breathe, call your local emergency medical services immediately.

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Try your own activity! you may design and explore more to check your understanding.
Ex. Try to look for a chicken's heart and identify the parts of similar to that of Hunan's heart

ANSWER:Like the human heart, the chicken heart has  four chambers - a right atrium and ventricle which receives deoxygenated blood from the body and sends it to the lungs and a left atrium and ventricle which receives oxygenated blood from the lungs and sends it to the body.

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QUESTIONS

ANSWER: 1.)The right side of your heart receives oxygen-poor blood from your veins and pumps it to your lungs, where it picks up oxygen and gets rid of carbon dioxide.

ANSWER: 2.) The human heart is an organ that pumps blood throughout the body while a pump is a device which moves fluids by mechanical action. ... First, its mechanical action creates a vacuum at the pump inlet, second, its mechanical action delivers this liquid to the pump outlet.

ANSWER: 3.) Blood  enters the heart through  two large veins – the posterior (INFERIOR) and the anterior (SUPERIOR) vena cava – carrying deoxygenated blood from the body into the right atrium. Blood  flows from the right atrium into the right ventricle through the tricuspid valve.

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Objective: Identify the parts of the heart and trace the pathway of blood

Materials: Science books, illustration of the human heart

Procedure: Refer the diagram and check your understanding of the human heart by giving the functions of each numbered parts.

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QUESTIONS

1. The main parts of the circulatory system?
ANSWER: The main parts of the circulatory system are HEART, BLOOD, and BLOOD VESSELS.

2. What are the main functions of circulatory system?
ANSWER: The main function of the circulatory system is to carry the blood and oxygen around your body.

3. Differentiate the three types of blood circulation.
ANSWER: Systemic Circulation carries oxygenated or oxygen-rich blood.
Pulmonary Circulation carries blood between the heart and lungs and the Coronary Circulation is the movement of blood in the heart.

CRITICAL THINKING
How do you think our circulatory system differs to that of an earthworm?
ANSWER:

The earthworm has a closed circulatory system and our is open. An earthworm circulates blood exclusively through vessels.

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LESSON 2            THE AMAZING CIRCUIT (THE CIRCULATORY SYSTEM)

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LESSON 2            THE AMAZING CIRCUIT (THE CIRCULATORY SYSTEM)

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DIRECTIONS: The respiratory system is composed of organs for breathing and respiration. Can you guess which organ is being described.

1. The passage from the trachea to either left or right lung.
ANSWER: bronchi

2. Also known as the windpipe
ANSWER: trachea

3. Sac of the lungs in which the exchange of gases between the cells of the body and the external environment takes place
ANSWER: alveoli

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Activity# 2.1 Getting to know the components of circulatory system 

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Activity# 2.1 Getting to know the components of circulatory system 

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Objective: identify the components of the circulatory system.
Materials: Science book, diagram of the circulatory system.

Procedure:
1. Read the following paragraph about circulatory system.
2. Using the information given, fill the missing parts, description and functions to complete the graphic organizer. Write your answer on you answer sheet.

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Objective: Create a model of a lungs and describe what happens during breathing.

Materials: 2-liter empty plastic bottle with cap, 2 plastic straws, 1 large balloon, 2 small balloons, 2 rubber bands, pair of scissors. (Note: if balloons are not available, plastic bags e.g. ice candy bags and sando bags can be used as alternative for small and big balloons)

Procedure:

1. Using a pair of scissors, cut of the bottom of the 2-liter plastic bottles
2. Drill 2 holes to the cap of the bottle. Make sure the holes are far enough from each other and are big enough for a drinking straw to fit through.

It's also our assignment

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DIRECTION: Read and Analyze each statement and write your answer sheet.

CRITICAL THINKING QUESTIONS

1.Cilia (sing. cilium) line the nasal cavity and other respiratory tubes. Describe the function of cilia in the respiratory tracts.
ANSWER: They work, for instance, to keep the airways clear of mucus and dirt, allowing us to breathe easily and without irritation. They also help propel sperm.

2.After playing basketball, Reb takes several deep and rapid breaths. After a while, he felt dizzy. Describe what has happened.
ANSWER: Hyperventilation, means breathing to fast. When you breathe too fast, you exhale a lot of carbon dioxide.

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Activity#1.2 Getting to know our breathing system:

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Activity#1.2 Getting to know our breathing system:

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Objective: Describe the functions of each part of the Respiratory System.
Materials: Diagram the respiratory system, any science book
Procedure: Refer to the diagram in Activity 1.1 and check your understanding of the respiratory system by giving the functions of each numbered part. Write your answers on your answer sheet.

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Compare three systems for gas exchange in animals (e.g earthworm, fish, insect) which you have learned in the previous grade level.

ANSWERS: Earthworms do not have specialized respiratory organs like we do, instead they take in oxygen and expel carbon dioxide directly through their skin
Fish exchange gases by pulling oxygen rich water through their mouth and pumping it's over gets some insect qnd some other invertebrates, exchange oxygen and carbon dioxide between their tissues and the air by a system of air-filled tubes called trachea

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1. What important role do in alveoli play in our body?
ANSWER: The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out.
2.What is the important role of diagphragm in our body?
ANSWER:Upon inhalation, the diaphragm contracts and flattens and the chest cavity enlarges.
3.Trace the pathway of air by naming the parts of respiratory system to which it passes
ANSWER: Nose and Mouth➡️Pharynx➡️Larynx➡️Trachea➡️Bronchi➡️Lungs➡️Alveoli➡️Diaphragm

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1.What is the main function of the respiratory system?
The Respiratory system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood. Common problems include allergies, diseases or infections.

2.How do the lungs work? The lungs bring fresh oxygen into our body. They remove the carbon dioxide and other waste gases that your body's doesn't need.

3. What gases are exchanged in the Respiratory system?
Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs.

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ACTIVITY# 1.1 Getting know our breathing system

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ACTIVITY# 1.1 Getting know our breathing system

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Procedure:
1.Study the diagram of the human respiratory system
2.Label the parts of the respiratory system.

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LESSON # 1 THE HUMAN RESPIRATORY SYSTEM         LOOKING BACK

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LESSON # 1 THE HUMAN RESPIRATORY SYSTEM         LOOKING BACK

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DIRECTIONS: The human body is composed of many different parts that work together.
Can you guess which body system does the following your body?

1.Break down food into smaller pieces
ANSWER: DIGESTIVE SYSTEM

2.Allow the body to take the oxygen and expel the carbon dioxide
ANSWER: REPISRATORY SYSTEM

3.Push blood throughout your entire body
ANSWER: CIRCULATORY SYSTEM