Scavenger+Hunt+Answer+Key

Topic:States of Matter, Grade level: 3rd

1. Q: Atoms and groups of atoms called molecules make up what? A: Matter (c) 2. Q:Things only move from one phase to another by_. A: Physical Means (b) 3. Q: Unlike physical changes, you cannot reverse chemical changes. A: True (a)
 * Matter matters!**
 * (Lauren Munsinger)**

4. Q: Atoms in a solid have a definite shape, but are able to change their shape by flowing. A: False (b.) 5. Q: Molecules in a solid are: A: Stuck (b.) 6. Q: Which of the following is an example of a Solid? A: Pencil (c.)
 * Solid as a Rock**
 * (Mariel Sousa)**

7. Q: The "Northern" Lights are an example of [|Plasma]. A: True (a) 8. Q:[|Plasma] consists of free-floating ions, which are ? A: Positively Charged (a) 9. Q:Plasma is the most common form of matter. A: True
 * Plasma: the 4th type of Matter**
 * (Kara Flannery& Priscilla Diaz)**

10. Q: In a couple of words describe what a [|liquid] is. A: A liquid is anything that has size or volume, but does not have a shape.
 * Go with the Flow- Liquid**
 * (Joy Fischer)**

11. Q: What is it called when you have a variety of materials in a [|liquid]? A: d. A solution.

12. Q: Which of the following is true about [|liquids]? A: c. It has definite volume.

Picture source: http://liveearth.org/en/save/water


 * It's Everywhere- Gasses **
 * (Emma Wheat) **

13. Q. [|Vapor] means the same thing as gas A. True

14. Q. As [|gasses] heat up, their molecules A. move faster

15. Q. Briefly explain why a gas (such as [|helium]) floats. A. Helium floats because it weighs less than the air surrounding it.