Science Padlet by Spider34521 https://padlet.com/eolufisibe/sslxotumme1h Made with a helpful mind en-us 2018-03-05 11:26:03 UTC 2024-02-09 15:33:35 UTC hello@padlet.com https://padlet-assets.s3.amazonaws.com/icons/Bigthunderstorm.png Chemical bonding eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238015625 Non metal + non metal =  covalent bonding
metal + metal = metallic bonding
metal + non metal = ionic bonding]]> 2018-03-05 11:27:55 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238015625 Diffusion eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238015764 Diffusion literally means spreading out. So diffusion in science is when particles spread throughout the air.]]> 2018-03-05 11:28:30 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238015764 Percenteages of gases contained in air (approximate) eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238015870 Nitrogen - 78%
Oxygen - 21%
Argon - 0.9%
Carbon dioxide - 0.04%
These are the main gases contained in air however there are small amounts of other gases contained in air as well.]]> 2018-03-05 11:28:50 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238015870 Metals and non-metals eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238015970 Metals are good conductors of heat and electricity. Metals are also shiny and malleable. Metals are not brittle and have high melting and boiling points and are sonorous.

Most non-metals are gases and liquids however there are a few solid non-metals but the main one off them being Carbon. Non-metals are good insulators for heat and electricity however are not malleable and look rather dull so are not shiny. Brittle and ductile, have low melting and boiling points and would make a dull sound if hit with a hammer. (lets think honesly here who in there right mind would try and hit a Non-metal with a hammer).]]> 2018-03-05 11:29:10 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238015970 Separation techniques eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238016051 Filtration - If sand is added to water the way to get it out of the water is to use filtration as this is the best way to remove the sand as sand is a solid and is not soluble so will be caught in the filter paper as the water passes through.

Evaporation - When salt and water are in a solution evaporation is the best wayto remove the salt from the water because when the water is boiled it evaporates and leaves the salt on the edge of the container or glass that it was originally in.

Simple distillation - Simple distillation is another process used when you want salt to be removed from water. Distillation is when a liquid is boiled then forced through a cooling tube where it condenses then the pure water is left is flowed into a beaker at the end  of the cooling tube.

Fractional distillation - Mentioned to the right of this post.

Chromotography - Chromotography is used when you want to see what colours are used to make certain colours and also to extract those colours from (lets say) a felt tip pen. A line is drawn using pencil on a piece of paper then water is added into the beaker containing the paper so that it fills to just under the pencil line, then dot on the felt tip pen then watch and wait. ]]> 2018-03-05 11:29:29 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238016051 Fractional distillation eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238016148 Fractional distillation is the process of distillation however is used with a mixture of liquids all with different boiling points so that the liquid evaporates and condenses one liquid at a time.]]> 2018-03-05 11:29:57 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238016148 turning moments eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238016261 moment= force x distance]]> 2018-03-05 11:30:28 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238016261 Food chains (terms) eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238016717 environment = the things that surrounding a living organism
Habitat = the place where an organism lives
population = all the members of a single species that live in a habitat
community = all the populations of different organisms that live together in a habitat 
Ecosystem = a community and habitat in which organisms live ]]> 2018-03-05 11:31:43 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238016717 Structure of a leaf (top layer to bottom layer) eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238016782 Waxy cuticle 
Upper epidermis 
Palisade mesophyll
Spongy mesophyll  
Lower epidermis 
(Inside lower epidermis) Guard cells With chloroplasts
Waxy cuticle 
There is also an air hole on the bottom of the leaf to exchange gases this is called the Stomata ]]> 2018-03-05 11:31:59 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238016782 The Big 5 Chemical Reactions - Science eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238016970 Combustion: A combustion reaction always has oxygen as one reactant. The second reactant is always a hydrocarbon, which is a compound made up of carbon and hydrogen. A combustion reaction also always produces CO2 and H2O. Eg. Methane + 2 Oxygen = Carbon Dioxide + 2 Water. In this reaction you will see smoke and fire.

Thermal Decomposition: Thermal decomposition, or thermolysis, is a chemical decomposition caused by heat. The decomposition temperature of a substance is the temperature at which the substance chemically decomposes. The reaction is usually endothermic as heat is required to break chemical bonds in the compound undergoing decomposition. In this reaction you can see a change of colour, this is because the carbon dioxide is being released from the element.

Oxidation and Reduction:
Oxidation: Oxidation is the gain of an oxygen atom by a substance. For example, Magnesium is oxidised when it reacts with oxygen turning it into Magnesium Oxide.

Reduction: Reduction is the loss of oxygen from a substance. For Example, Copper oxide can be reduced just to form copper if reacted with hydrogen.

Displacement: Displacement reaction is a chemical reaction in which a more reactive element displaces a less reactive element from its compound. Both metals and non-metals take part in displacement reactions. For Example, Magnesium + Copper Oxide - Magnesium Oxide + Copper.

Neutralisation: A neutralisation reaction is when an Acid and a Base react quantitatively. For Example, Acid + Base = A Salt + Water, HCI + NaoH - H20 + NaCl
]]> 2018-03-05 11:32:38 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238016970 Testing for starch eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238017150 To test for starch you have to use iodine solution (red/brown) and see if when you add it to the leaf you are testing it turns blue/black it means that the test has worked and their is starch contained in the product you are testing. It is possible to distinguish starch from other carbohydrates using this iodine solution test.]]> 2018-03-05 11:33:16 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238017150 The Squeaky pop Test for Hydrogen eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238017262 Get another person or student to place a lighted splint over the end of a test tube, as you take your finger or thumb away. Then listen there should be a distinctive 'squeaky pop' sound. If you do not hear this sound try the test again and then carry on to do the test until you hear the 'pop.']]> 2018-03-05 11:33:41 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238017262 The Limewater test for Carbon Dioxide eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238017347 First bubble the C02 through the limewater. This is the most effective way to test for Carbon Dioxide. When the Carbon Dioxide reacts with the limewater it forms a solid precipitate of Calcium Carbonate - Chalk, or Limestone.]]> 2018-03-05 11:33:59 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238017347 Atoms, Elements and Compounds eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238017442 Atom: An atom is the smallest particle of a chemical element.

Element: An element is one or more of the same atoms which are chemically bonded together.

Compound: A compound is two or more elements which are chemically bonded;.]]> 2018-03-05 11:34:21 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238017442 eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238017609 2018-03-05 11:34:47 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238017609 The Glowing Splint Test For Oxygen eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238017775 A glowing splint is held above a glass tube, in which oxygen gas is trapped. When the stockpot is opened oxygen gas rushes out and ignites the glowing splint.]]> 2018-03-05 11:35:24 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238017775 The Squeaky pop Test for Hydrogen eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238017873 Get another person or student to place a lighted splint over the end of a test tube, as you take your finger or thumb away. Then listen there should be a distinctive 'squeaky pop' sound. If you do not hear this sound try the test again and then carry on to do the test until you hear the 'pop.']]> 2018-03-05 11:35:46 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238017873 Here is a very very long science revision slideshow with all of the topics needed to know. eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238017941 2018-03-05 11:36:01 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238017941 Common Elements eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018036 Hydrogen - H
Carbon - C
Oxygen - O
Nitrogen - N
Sulphur - S
Magnesium - Mg
Sodium - Na
Chlorine - Cl
Calcium - Ca
Copper - Cu
Iron - Fe
Helium - He]]> 2018-03-05 11:36:23 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018036 eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018130 Make your own molecules]]> 2018-03-05 11:36:41 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018130 eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018245 2018-03-05 11:37:05 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018245 eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018396 2018-03-05 11:37:28 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018396 eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018468 2018-03-05 11:37:43 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018468 Solute, Solvent and Solution definitions eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018643 Solute: The thing that gets dissollved in the solvent to form a solution.

Solvent: The substance in which the solute is dissolved in to form a solution.

Solution: The mixture of a solvent and a solute.]]> 2018-03-05 11:38:09 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018643 Parts of the respiratory system eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018782 Nazal cavity
Nostril
Oral Cavity
Pharynx
Larynx
Trachea
Main Bronchus
Lungs
Diaphragm

]]> 2018-03-05 11:38:28 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018782 Electricity eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018868 https://www.echalk.co.uk/Science/physics/electricity/household/fuse/fuse.html For how a fuse saves lives
https://www.echalk.co.uk/Science/physics/electricity/household/RCD/RCD.html For how RCD saves lives]]> 2018-03-05 11:38:42 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018868 Parts of the respiratory system eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238018984 Nazal cavity
Nostril
Oral Cavity
Pharynx
Larynx
Trachea
Main Bronchus
Lungs
Diaphragm

]]> 2018-03-05 11:39:00 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238018984 Lung structure eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019100 https://www.bbc.co.uk/education/clips/z79n34j


]]> 2018-03-05 11:39:21 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019100 Parts of the Digestive system eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019177 The mouth 
The esophagus 
The stomach 
The liver 
The gallbladder
The pancreas 
The small intestine 
The large intestine ]]> 2018-03-05 11:39:38 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019177 Parts of the heart eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019272 https://subscription.echalk.co.uk/Science/biology/heart/heart.htm]]> 2018-03-05 11:39:58 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019272 Aerobic respiration eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019346 This is the process in a cell of breaking down nutrients using oxygen (video clip here)

]]> 2018-03-05 11:40:16 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019346 Lung structure eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019446 https://www.bbc.co.uk/education/clips/z79n34j


]]> 2018-03-05 11:40:39 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019446 First 20 Elements of the periodic table. eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019506 1.Hydrogen
2.Helium
3.Lithium
4.Berylium
5.Boron
6.Carbon
7.Nitorgen
8.Oxygen
9.Fluorine
10.Neon
11.Sodium
12.Magnesium
13.Aluminium
14.Slicon
15.Phosphorous
16.Sulphur
17.Chlorine
18.Argon
19.Potassium
20.Calcium]]> 2018-03-05 11:40:55 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019506 Light eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019576 Light comes from a luminous source, light is a wave so it travels straight. Ligh travels much faster than sound does, for example when a starting pistol is fired you can see the explosion of the gunpowder first and then you hear the bang. This all happens because light travels faster.

White light is not just one colour it is all of the colours in the rainbow. You can only see this when the light hits a prism or a raindrop. The proper name for this rainbow effect is a spectrum. All light is, is a just a wave of energy.]]> 2018-03-05 11:41:12 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019576 Nutrition eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019629 Carbs=Starch - Glucose
Found in=Bread - Potatoes - Cereals
Used for=Energy

Proteins=Protein
Found in= Meat - Fish - Eggs
Used for=Build up of cells

Fats=Fat
Found in=Butter - Cooking Oil - Cream
Usd for=Energy

Vitamins=A - B2 - B1 - C - D - E
Contained in= Vegetables - Fruits - Cereals
Used for=Vital processes

Minerals=Mierals
Found in=Iron - Calcium - Salts - Sodium
Needed for=Blood - Teeth and Bones - Nerves

Fibre
Found in=Vegetables - Fruit - Cereals
Used for=Digestive system]]> 2018-03-05 11:41:27 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019629 Animal & Plant Cells eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019698 Animal cells have a nucleus, cytoplasm and cell membranes like the one below

whereas the plant cell like below has 3 more components: one is the vacuole another one is the cell wall and the last one is the chloroplasts

The functions of these parts are as follows:

Chloroplast - performs photosynthesis, gives the plant it's food.
Vacuole -  helps hold the structure of the cell.
cell wall - the cell wall protects the cell.
cell membrane - this controls the movement of substances going in and out of the cell.
cytoplasm - cytoplasm contains all the organelles and cell parts
nucleus- this holds all the DNA for the cell along with proteins.
Mitochondria (not in picture below)-they break down and make energy for a plant cell (using the energy produced by photosynthesis)

]]> 2018-03-05 11:41:44 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019698 Here is a helpful resource on SCIENCE eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019775 http://studyjams.scholastic.com/studyjams/jams/science/ecosystems/water-cycle.htm]]> 2018-03-05 11:42:02 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019775 Physics eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238019900 SPEED=DISTANCE / TIME
PRESSURE=FORCE / AREA
DENSITY=MASS/VOLUME
MOMENT=DISTANCE x FORCE]]> 2018-03-05 11:42:24 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238019900 eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238020184 Here is a video which Hiroshi made sorry that the audio is a bit muffled.]]> 2018-03-05 11:43:21 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238020184 eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238020245 2018-03-05 11:43:37 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238020245 Reactivity series eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238020309 MOST REACTIVE
Potassium
Sodium
Calcium
Magnesium
Aluminium
CARBON

KIND OF REACTIVE
Zinc
Iron
Tin
Lead
HYDROGEN

NOT REACTIVE
Copper
Silver 
Gold
Platinum]]> 2018-03-05 11:43:52 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238020309 BBC Bitesize for all Science subjects eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238020591 2018-03-05 11:45:00 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238020591 Some more help on science eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238020605 Here you go ]]> 2018-03-05 11:45:05 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238020605 refraction eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238020632 refraction is where light from a less dense subject (air) and hits a  more dense subject (water) and changes direction to move towards t s the normal line which is always at  90 degrees and at this stage we do not need to measure a specific angle towards the normal line  remember the angle at which light enters a dense object is parallel to the way it comes out]]> 2018-03-05 11:45:12 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238020632 eolufisibe https://padlet.com/eolufisibe/sslxotumme1h/wish/238773661 2018-03-06 17:49:58 UTC https://padlet.com/eolufisibe/sslxotumme1h/wish/238773661