2. Silver Cluster Science Rules Matter has mass and volume Matter is made of atoms Matter combines to form different substances Different States of Matter 100 200 300 400 500

3. Which of the following is NOT a state of matter? A.Solid B.Water C.Liquid D.Gas B. Water

4. True or false. A compound can have very different properties than the elements that make it up. TRUE.

5. Proportions in ___________ vary; whereas proportions in __________ remain the same. A.Mixtures; Compounds B.Compounds; Mixtures C.Atoms; Molecules D.Molecules; Atoms A. Mixtures; Compounds

6. True or False. Most substances are considered to be pure. False; most substances are considered to be mixed. Example: the air you breathe.

7. There is more space between the particles of a _________ than there is between the particles of a ________. A.Liquid; Gas B.Gas; Liquid C.Solid; Gas D.Solid; Liquid B. Gas; Liquid

8. Which state of matter is this photo showing? Gas

9. True or False. When a molecule changes from one state to another, the molecules in the substance do not change.. TRUE. What does change???

10. Which of the following is an example of a physical molecule that you see? A.Water molecules B.Molecules in your desk C.Air molecules (bouncing dust particles) D.Picture frame molecules Both water molecules and air molecules are acceptable

11. A _________ is a substance that contains only one type of atom. Element

12. What is the ONLY way to separate a compound? By breaking the bonds between atoms

13. How is a substance considered to be pure? If it has only ONE type of component (molecule, atom— ex: element)

14. What is a combination of different substances that remain the same individual substances and can be separated by physical means? Please provide an example as well. Mixture. Answers may vary—salads, trail mix, smoothies...etc.

15. How is a compound different than a mixture? A. No difference, they are the same B. Compounds can be separated by physical means, whereas mixtures cannot C. Mixtures are separated by breaking bonds, whereas compounds are not. D. Mixtures are separated by physical means and compounds are separated by breaking bonds between atoms D. Mixtures are separated by physical means and compounds are separated by breaking bonds between atoms.

16. True or False. Heterogeneous- the same throughout; homogeneous- varies throughout. False. Heterogeneous- varies throughout. Homogeneous- the same throughout.

17. Which is NOT an example of a mixed substance? A. paper B. air C. element D. wood Element—pure substance!

18. Which state of matter does this picture depict? Solid

19. This state of matter has particles that can move freely and has NO fixed volume/fixed shape. Gas

20. Whether a substance is a solid, liquid, or gas depends on how close its atoms are to one another and... How free the atoms are to move

21. True or False. Gas molecules move faster at higher temperatures than they do at lower temperatures. TRUE.

22. Gas molecules are always in motion; they bounce off one another and the insides of the container. How do gas molecules behave in a closed container?