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Second 6 th Weeks Review. 6 th grade Science. 1. How many elements are represented? CO2 . How many elements are represented? CO2 2. 2. What is Mercury?. What is Mercury ? Element. 3. How many elements are represented? H2O. 3. How many elements are represented? H2O 2.
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Second 6th Weeks Review 6th grade Science
What is Mercury? • Element
5. What element is used in the ocean, life, and atmosphere? • Oxygen
8. What is found mostly in the atmosphere? • Nitrogen
10. What does abundant mean? • Abundant means to exist in large quantities. Plentiful
11. What is a compound? • Consisting of two or more elements
12. What is the following? FeCl • Compound
13. What is a substance that cannot be changed into another substance?
13. What is a substance that cannot be changed into another substance? • Element
14. What is a chemical change? • A chemical change is when the substance is changed into a new substance.
15. When baking soda and vinegar mix what gives away the chemical change has occurred?
15. When baking soda and vinegar mix what gives away the chemical change has occurred? • The gas bubbles that form
16. What elements are found in the core of the Earth? • Nickel and Iron
17. Give an example of Chemical Change • A match lighting
18. What kind of change is burning paper? • Chemical Change
19. If a solution dissolves into another solution and changes the color. What is the change called?
19. If a solution dissolves into another solution and changes the color. What is the change called? • Physical Change
20. If a solution turns into gas bubbles what is the change called?
20. If a solution turns into gas bubbles what is the change called? • Chemical Change
21. What elements make up the earth’s crust? What is total of these elements?
21. What elements make up the earth’s crust? What is total of these elements? • Oxygen and silicon 74.3%
22. Is NaCl a element or a compound? • Compound