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Chemistry
10th -
12thgrade
Introduction to Chemistry - Unit 1 Review
15 questions
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- 1. Multiple Choice
Which state of matter has an indefinite shape and definite volume?
solid
liquid
gas
plasma
- 2. Multiple Choice
SpongeBob noticed that his favorite pants were not as clean as they used to be. His friend Sandy told him that he should try using Clean - O detergent, a new laundry soap she found at Sail - Mart. SpongeBob made sure to wash one pair of pants in plain water and another pair in water with the Clean - O detergent. After washing both pairs of pants a total of three times, the pants washed in the Clean - O detergent did not appear to be any cleaner than the pants washed in plain water. What is the dependent variable in SpongeBob's experiment?
number of times washed
type of pants
detergent used
how clean the pants were
- 3. Multiple Choice
Which of the following is a compound?
sugar cookie
motor oil
oxygen
water
- 4. Multiple Choice
Which of the following is an example of a chemical change?
burning a piece of wood
tearing up a piece of paper
inflating a tire
breaking a pencil
- 5. Multiple Choice
What are the horizontal rows on the periodic table called?
groups
periods
elements
mixtures
- 6. Multiple Choice
Taking a nap in the afternoon makes people more focused for the rest of the day. What is the independent variable?
time in the afternoon
focus for the rest of the day
taking an afternoon nap
what was eaten for lunch
- 7. Multiple Choice
Which of the following is an example of a physical change?
cooking pancakes
silver tarnishes
cutting grass
wood rots
- 8. Multiple Choice
Which of the following is an example of a heterogeneous mixture?
motor oil
sodium
italian dressing
blue ink
- 9. Multiple Choice
What is another word for precipitate?
rain
liquid
gas
solid
- 10. Multiple Choice
Which state of matter has a definite shape and volume?
solid
liquid
gas
plasma
- 11. Multiple Choice
Which of the following is an element?
water
calcium
salt
sugar cookie
- 12. Multiple Choice
A comprehension test was given to students after they had studied textbook material either in silence or with the television turned on. What is the independent variable?
studying with or without the television on
grade on the test
how long the student studied
studying with people in the room or not
- 13. Multiple Choice
Which of the following is a homogeneous mixture?
paint
rocky road ice cream
sugar cookie
nitrogen
- 14. Multiple Choice
Which of the following is an example of a chemical change?
breaking a leaf in half
silver tarnishes
chopping a piece of wood into pieces
water evaporating
- 15. Multiple Choice
Which of the following is a compound?
sodium
paint
glucose
motor oil
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