1. What does chromatography mean?

• a. taking pictures with a camera
• b. using a solution to separate a mixture into its separate parts
• c. combining different, separate parts into wholes
• d. wiping up spilled water with paper towels

2. Which of these words means “characteristics of an object”? In this unit, we used these to separate mixtures.

• a. parts
• b. matter
• c. properties
• d. boardwalk - park place

3. What needs to be done to matter that is in a solid phase, in order to change it to a liquid?

• a. add energy
• b. remove the gas
• c. subtract energy
• d. add more solid

4. All matter in the universe is made of what?

• a. energy
• b. air
• c. nuts and bolts
• d. atoms

5. Jessie made many observations of nuts and bolts. One of the properties that she tested was measured with a scale. Which property was she measuring ?

• a. size
• b. mass
• c. length
• d. taste

6. What do we call a kind of matter that is made of only one type of atom or molecule ?

• a. characteristic property
• b. boiling point
• c. phase change
• d. pure substance

7. Jessie is trying to decide how to organize Grandpa’s nuts and bolts. She observes each one carefully and classifies them into various groups. What did she use to decide which nut and bolt belonged in each category?

• a. physical properties
• b. a kitchen scale
• c. data from a data table
• d. the internet

9. “Conservation of Mass” means:

• a. matter can be created or destroyed
• b. matter cannot be created or destroyed
• c. matter can be solid, liquid, or gas
• d. matter doesn’t matter

10. Jessie’s grandpa divided an entire box of cereal into ten different bowls. He tells you that he believes the cereal weighs more now that it’s in ten bowls than it did inside the whole box. If we weighed them (without the added weight of the bowls), what should the total weight be?

• a. greater than the original mix
• b. less than the original mix
• c. equal to the original mix
• d. I don’t care, I just want the prize inside

13. The density of water is a ____________________.

• a. physical property
• b. independent variable
• c. characteristic property
• d. a whole lot of water