Name _________________________________________________ Period _____ Score _____ ChemThink Lesson 1--Particulate Nature of Matter http://www.pbslearningmedia.org/resource/lsps07.sci.phys.matter.naturematter/particulate-nature-of-matter/ 1. What is the particulate nature of matter? ______________________________________________________________________ ______________________________________________________________________ 2. A substance composed of only one type of atom is called a(n) ____________________ 3. How are the atoms behaving inside the penny? ______________________________________________________________________ ______________________________________________________________________ 4. When a substance is a solid, its atoms vibrate in _____________ position. 5. What is a pure substance? ______________________________________________________________________ ______________________________________________________________________ 6. Describe what the molecules are doing when you take a closer look inside the glass of water. ______________________________________________________________________ ______________________________________________________________________ 7. A ____________________________ is formed whenever two or more atoms are chemically joined together. 8. What information does a subscript give you in a chemical formula? ______________________________________________________________________ ______________________________________________________________________ 9. What does it mean if there is no subscript? ______________________________________________________________________ 10. A _______________________ is formed when two different types of _______________ are present in the same molecule. 11. Describe the typical movement of molecules within a liquid? ______________________________________________________________________ ______________________________________________________________________ 12. How do you indicate in a chemical formula that a substance is a liquid? _____________ 13. There are __________ different types of molecules are present in the balloon. 14. Why is a molecule of nitrogen also classified as an element? ______________________________________________________________________ ______________________________________________________________________ 15. Describe the typical movement of molecules in a gas? ______________________________________________________________________ ______________________________________________________________________ 16. How do you indicate in a chemical formula that a substance is a gas? ______________________________________________________________________ 17. Why are the molecules present within the balloon considered an example of a mixture? ______________________________________________________________________ ______________________________________________________________________ 18. How do you know that the molecules present in the balloon are not chemically bonded together? ______________________________________________________________________ ______________________________________________________________________ 19. How do you indicate in a chemical formula that a substance is a solid? ______________ 20. Why are Cu and O2 both considered elements? ______________________________________________________________________ ______________________________________________________________________ 21. Why is citric acid considered a compound? ______________________________________________________________________ ______________________________________________________________________ 22. Why are Cu and CO2 both considered to be pure substances? ______________________________________________________________________ ______________________________________________________________________ 23. How can we tell that CO2 + Ar is a mixture? ______________________________________________________________________ ______________________________________________________________________ 24. What information does a coefficient give us in a chemical formula? ______________________________________________________________________ ______________________________________________________________________ YouTube Video Tutorial Watch the following YouTube video tutorials on the ChemThink Particulate Nature of Matter Quiz. As you watch the tutorial, circle or check the correct answer(s) for each question. https://www.youtube.com/watch?v=N0YBnFh3HTE https://www.youtube.com/watch?v=V19I95Ibz1o 1. 2. 3. 4. 5. 6. 7. 8. 9. 10.