Science Homework #4: Year 9

Science Homework:  Year 9  (Mrs Downing)

How does an object gain gravitational potential energy?
Name the different layers of the Earth.
How is igneous rock formed?  Give two examples of igneous rock.
What are the vertical columns in the periodic table called?
Describe the process of photosynthesis. Use a word equation to help.
Why does blood from a smoker contain less oxygen than blood from a non-smoker?
Explain how you could use a metal to tell the difference between water and dilute acid.
Describe how temperature changes can make cracks in rocks form.