Unit 2 Chapter 1 Test 5.6

1. Sarah uses her five senses to gather information about the properties of ketchup. By doing this, she can notice many things about a food item. What is she doing?

• a. visualizing
• b. observing
• c. explaining
• d. inferring

2. Sarah notices that ketchup is the color red, smells and tastes like tomatoes, and has a thick, slimy texture. She is observing the ___________ of ketchup.

• a. smell
• b. sound
• c. properties
• d. weight

3. You work at Good Food Production, Inc. Your job description includes creating new foods and understanding the science behind why things happen the way they do when creating mixtures. What is your job title?

• a. food scientist
• b. astronomer
• c. president of Good Food Production, Inc.
• d. food taster

4. In the book, Made of Matter, it says, "If everything is made of matter, what is matter made of? All matter is made of tiny pieces." These tiny pieces are called what?

• a. sugar
• b. liquids
• c. atoms
• d. mixtures

5. According to the book, Made of Matter, "Atoms can join together to form ____________. They are bigger than atoms, but they are still tiny."

• a. substances
• b. mixtures
• c. properties
• d. molecules

6. All molecules of one substance are

• a. similar
• b. alike
• c. completely different
• d. exactly the same

7. All molecules are ____________ from molecules of any other substance.

• a. different
• b. alike
• c. exactly the same
• d. dangerous

11. Color Changing Model - This model shows that as the water molecules passed through the food-coloring mixture, the water molecules bumped into the dye molecules, and the water molecules changed to the same colors as the dye molecules.

• a. This model fits with both statements.
• b. This model conflicts with statement A.
• c. This model conflicts with statement B.
• d. This model conflicts with both statement A and statement B.

12. Growing Model - This model shows that as the water molecules passed through the food coloring, they attached to the dye molecules and made the dye molecules grow, so the dye traveled up the paper.

• a. This model fits with both statements.
• b. This model conflicts with statement A.
• c. This model conflicts with statement B.
• d. This model conflicts with both statement A and statement B.

13. Attraction Model - This model showed that the water molecules were attracted to the dye and the paper. The water molecules climbed up the paper and pulled the dye molecules with them.

• a. This model fits with both statements.
• b. This model conflicts with statement A.
• c. This model conflicts with statement B.
• d. This model conflicts with both statement A and statement B.