2. Jeopardy $100 Elements Compounds and Mixtures Physical Or Chemical Change Physical Or Chemical Property Heterogenous Or Homogeneous Water Properties/ Biogeochemical Cycles $200 $300 $400 $500 $400 $300 $200 $100 $500 $400 $300 $200 $100 $500 $400 $300 $200 $100 $500 $400 $300 $200 $100 Final Jeopardy Final Jeopardy

3. 1 - $100 A pure substance that cannot be broken down into simpler substances AND is made of only 1 kind of atom is called what? A pure substance that cannot be broken down into simpler substances AND is made of only 1 kind of atom is called what? Element Element

4. 1 - $200 A mixture that appears to contain only one substance is called what? Solution Solution

5. 1 - $300 Which of the following is a mixture? Silicon, carbon dioxide, or salt water? Salt water Salt water

6. 1 - $400 Which of the following is not a pure substance? Milk, oxygen, water Milk Milk

7. 1 - $500 Why is water classified as a compound? Because it always has 2 hydrogen atoms for each oxygen atom Because it always has 2 hydrogen atoms for each oxygen atom

8. 2 - $100 This kind of change occurs when a material changes shape or size, but the material itself does not change. Physical Physical

9. 2 - $200 In the following examples, which one is NOT an example of a physical change: boiling water, bursting a balloon, or toasting a marshmallow? Toasting a Marshmallow Toasting a Marshmallow

10. 2 - $300 Which of the following is NOT a clue that a chemical change has occurred? Bubbling, production of gas, or change in shape? Change in Shape Change in Shape

11. 2 - $400 What are three possible clues that a chemical change has occurred? Production of a gas, smell, change in color, a new substance has been created, heat, light, or sound production Production of a gas, smell, change in color, a new substance has been created, heat, light, or sound production

12. 2 - $500 Explain why water breaking down into hydrogen and oxygen is a chemical change.

13. 3 - $100 Flammability is what kind of property? Chemical Chemical

14. 3 - $200 Density is a ____________ property. Physical Physical

15. 3 - $300 Aluminum’s melting point is 1220 degrees F. Physical Property Physical Property

16. 3 - $400 Viscosity is a measurement of how easy something flows. Would this be a physical or chemical property? Why? Physical Physical

17. 3 - $500 Use 3 words to describe what a chemical property is. Ability to React Ability to React

18. 4 - $100 What is another name for a homogeneous mixture? Solution Solution

19. 4 - $200 In a solution, what is the substance that does the dissolving called? Solvent Solvent

20. 4 - $300 Water is the universal what? Solvent Solvent

21. 4 - $400 True or false: a homogeneous mixture only has 1 substance in it. false false

22. 4 - $500 If I leave a mixture of saltwater out in the sun for a while, the water will eventually evaporate, leaving only the salt. Why is this possible in mixtures? Because substances in mixtures are only physically combined, not chemically Because substances in mixtures are only physically combined, not chemically

23. 5 - $100 Which property of water allows it to stick to other things? Adhesion Adhesion

24. 5 - $200 Which property of water allows it to stick to itself? Cohesion Cohesion

25. 5 - $300 Which property of water allows it to resist changes in temperature? Specific Heat Specific Heat

26. 5 - $400 Name the 5 main components of the water cycle? Evaporation, Condensation, Precipitation, Transpiration, Run off Evaporation, Condensation, Precipitation, Transpiration, Run off

27. 5 - $500 Using the words respiration, decay and photosynthesis, explain the carbon cycle. Carbon is respired into the atmosphere by living things, carbon is broken down by decay and put back into the environment from wastes and dead Carbon is respired into the atmosphere by living things, carbon is broken down by decay and put back into the environment from wastes and dead

28. Final Jeopardy During a science lab, students placed 10 grams of sugar in a test tube and heated it over a burner. The sugar began to melt and turn into a colorless liquid. Continued heating caused the liquid sugar to turn brown. The sugar eventually began to smoke and changed into a solid black residue with a mass of 6.2 grams. What can students conclude from this experiment? –identify the physical and chemical changes. Physical Changes – Sugar Melting into a liquid Physical Changes – Sugar Melting into a liquid Chemical Changes – Turned Brown, began to smoke, changed into a solid black residue. Change in mass is because 3.8 grams of sugar were released as smoke during the chemical change Chemical Changes – Turned Brown, began to smoke, changed into a solid black residue. Change in mass is because 3.8 grams of sugar were released as smoke during the chemical change