Chemistry

We'll be going through your tests from last week in the lesson on Thursday, so will be continuing with the Chemistry section of the course today.
Answer these questions in your books as usual:

1. What is chemical compound is limestone made from? Write the name and the formula.
2. Watch the video on this link. What is limestone formed from?
3. What is limestone often used for? 
4. What does limestone form when it is heated? 
5. Complete this test once you've seen the animation in question 3.
6. Watch this video, and explain the major problem with building structures from limestone:             
7. What are coccolithophores? How can they create limestone?
8. If the cliffs at Dover are made from limestone, what fossilized animals are the players standing on?
9. If limestone dissolves slowly with water or acid rain, why is it used for buildings?
10. Fill in these sentences, using what you've done already today to help you.
11. Complete the quiz after the animation here.
12. Explain how the city you build in this game is less likely to contribute to forming acid rain.