1. What does magnesium do for plant?

2. What does nitrate do for plant?

3. Name one compound found in plant that contains carbon.

4. Name one property of group on elements

5. What group is Na in?

6. What is the formula for density?

7. What is the process where plants losses water vapour?

8. What does the liver do?

9. What are the two gametes?

10. How do you place the voltmeter?

1. What are the two main substances used in fertilizers, and what do they do?
2. Describe a physical property of giant covalent structures?
3. What will happen to a plant if it's lacking magnesium?
4. What is the trend in group 1 in the periodic table?
5. Why is the carbon cycle important?

6. Provide 3 reasons why the collision theory is true:

7. Define ionic bond

8. What is the formula for resistance?

9. Explain why there is a 50% chance the baby is a male

10. What causes noise cancellation?

1. Name the process that plants use to absorb water.

2. What type of bonding does H20 use?

3. What are the differences between series and parallel circuits?

4. Which organ in our body filters blood?

5. How does the surface area of metal increase the rate of reaction?

6. Which cell makes the plants green?

7. What is the word equation for photosynthesis?

8. What are the differences between sperm and egg cells?

9. How does the techtonic plate move?

10. Which cell determined the gender of the baby?

2. What is the result of combining metal carbonate and acid

3. Which is the metal lowest in the reactivity series

4. Describe how sedimentary rocks is formed

5. How many neutrons are there in a particle of praseodymium

6. Explain why fossil are often destroyed when metamorphic rocks form

7. “Measurement of temperature in ºC can be either positive, zero or negative.” Describe how the temperature measurement of water can be positive, zero or negative. Use the idea of the 3 states of matter in your answer 

8. Blessy wants to find out if the different parts of lemon will float or sink in salt solution.

She predicts that as the concentration of salt solution increases eventually all three parts of the lemon will float. Write a plan for her investigation. 

9. Write down 3 ways the cactus plant is adapted to survive in dry conditions.

10. Suggest 2 ways human activities can reduce the population of the toads in the pond.

1.What is photosynthesis?

2.Why do plants important in the carbon cycle?

3.What will happen to a plant if it's lacking of nitrates?

4. What will happen to the carbon cycle if all plant disappear?

5.What is the equation for photosynthesis?

1. what is the main source of energy in photosynthesis

2. what is the formula in glucose

3. What is an atom

4. What is heat

   
   

5. Which is higher in reactivity, hydrogen or silver

6. Is DNA made of genes or the opposite

7. What is a displacement reaction, give 2 examples

8. Explain how the magnetic rock alignment contribute to the theory of tectonic plates

9. What are the 3 ways of increasing rate of reaction

10. Draw a circuit containing 5 bulbs in parallel, 2 battery, 4 opened switch per branch, 6 volt meter, 2 more bulbs in series with 10 buzzers is hd gaye connected alternating each other with 10 more bulbs in a different branch

1. What is the use of magnesium and nitrate for plants

2. Formula of photosynthesis and respiration

3. What should a pregnant mom avoid doing and eating during pregnancy

4. What is a nebula

5. What happen in a stellar nursery

6. Give an example of natural selection

7. Why is diamonds stronger than graphite

8. What is density

9. Define amplitude and pitch

10. How does temperature effect rate of reaction.

1. What is the difference between heat and temperature?

2. What is the unit of heat?

3. What is the equation for density?

4. Write down the name of the meter that measures voltage.

5. Explain how the evaporation of liquid water cools our skins.

6. What does reinforce mean?

1. What is the difference between heat and temperature?

2. Describe the process of water going through the plant

3. If there are more bulbs added to a parallel circuit, what would happen to the current?

4. What are sperm and egg cells called?

5. Describe 3 evidences of tectonic plates

1. What happens to the current in a parallel circuit when you add more cells in?

2. How does convection current work when boiling water?

3. What is the name of the tube that carries urine from kidneys to the bladder?

4. What type of structure conducts electricity when dissolved in water?

5. What are the main factors that affect the rate of reaction?

6. Calculate the resistance when the voltage is 17 and current is 2.

7. Name the process where a zygote is formed.

8. What makes up a nebulae?

9. What happens when a plant lacks magnesium?

10. Write the word equation for Na + MgSO4, and explain what happens.

7. How could you check that the gas given off in an experiment is carbon dioxide?

8. What is a displacement reaction?

9. Describe the link between amplitude and loudness of a wave.

10. What does reinforce mean?