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SC.912.P.8.2 Pre-test
  • 1. What characteristic best describes what happen during a physical change?
A) Composition stays the same
B) Mass is lost
C) Form stays the same
D) Composition changes
  • 2. Which of the following does NOT indicate that a chemical change has occurred?
A) formation of a precipitate
B) melting of a solid
C) formation of a gas
D) color change
  • 3. If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes what is it called?
A) Both a physical and chemical change
B) Physical change
C) Neither a physical or chemical change
D) Chemical change
  • 4. Which of the following situations represents a chemical change?
A) Ice is placed in a beaker and heated until it melts.
B) A blue solution is mixed with a yellow solution and a green solution results.
C) A blue solution is mixed with a yellow solution and a brown solid is formed.
D) A strip of magnesium ribbon is broken into many small pieces.
  • 5. Which of the following is NOT a physical process?
A) sharpening a pencil
B) melting ice
C) melting ice
D) an explosion of dynamite
  • 6. Alexis is comparing the substances and hot water inside a ceramic cup, and the water vapor above the cup. What can she say about the motion of the particles in all of the substances?
A) They are always moving.
B) They move very fast in all directions.
C) They do not move.
D) They move past each other slowly.
  • 7. To observe a chemical property, you must attempt to change its identity. Which of these statements describes an example of a chemical property?
A) A metal turns to liquid at a certain temperature.
B) A painter coats a building with red paint.
C) A silver statue begins to tarnish.
D) A freshly waxed floor has a bright shine.
  • 8. What type of change occurs when one or more substances are converted into new substances?
A) Physical change
B) Chemical fusion
C) Nuclear reaction
D) Chemical change
  • 9. Luis often leaves his bicycle outside, even when it rains. Luis' bicycle has now begun to rust. How quickly a substance rusts is an example of which of the following?
A) a state of matter
B) a chemical property
C) a physical change
D) a physical property
  • 10. Which change can be easily be reversed?
A) Physical Change
B) Chemical Change
C) Both a physical and chemical change
D) Neither a physical or chemical change
  • 11. Chemical changes result in new substances, but physical changes do not. Which process is an example of a physical change?
A) charcoal burning in a grill
B) lettuce rotting in the refrigerator
C) scrap iron rusting over time
D) metal melting in very high heat
  • 12. Matter is everything around you. All matter has mass and volume. Which of these choices is an example of matter?
A) air
B) sound
C) light
D) magnetism
  • 13. There are several differences between chemical and physical changes. Which process is a sign of a chemical change?
A) A melting block of ice leaves a large puddle.
B) A cloud quickly changes shape when blown by wind.
C) A rotting potato gives off a bad smell.
D) A plaster statue breaks when it falls onto the floor.
  • 14. Which of the following is an example of physical change?
A) Mixing baking soda and vinegar together, and this causes bubbles and foam.
B) A glass cup falls from the counter and shatters on the ground.
C) Baking a birthday cake for your mother.
D) Lighting a piece of paper on fire and the paper burns up and leaves ashes.
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