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SC.912.P.8.2 Pre-test
  • 1. What characteristic best describes what happen during a physical change?
A) Form stays the same
B) Composition stays the same
C) Composition changes
D) Mass is lost
  • 2. Which of the following does NOT indicate that a chemical change has occurred?
A) formation of a precipitate
B) color change
C) melting of a solid
D) formation of a gas
  • 3. If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes what is it called?
A) Chemical change
B) Neither a physical or chemical change
C) Physical change
D) Both a physical and chemical change
  • 4. Which of the following situations represents a chemical change?
A) A blue solution is mixed with a yellow solution and a green solution results.
B) Ice is placed in a beaker and heated until it melts.
C) A strip of magnesium ribbon is broken into many small pieces.
D) A blue solution is mixed with a yellow solution and a brown solid is formed.
  • 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 move very fast in all directions.
B) They are always moving.
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 freshly waxed floor has a bright shine.
B) A metal turns to liquid at a certain temperature.
C) A silver statue begins to tarnish.
D) A painter coats a building with red paint.
  • 8. What type of change occurs when one or more substances are converted into new substances?
A) Chemical change
B) Physical change
C) Nuclear reaction
D) Chemical fusion
  • 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 physical change
C) a chemical property
D) a physical property
  • 10. Which change can be easily be reversed?
A) Chemical Change
B) Neither a physical or chemical change
C) Physical Change
D) Both a physical and 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) metal melting in very high heat
C) scrap iron rusting over time
D) lettuce rotting in the refrigerator
  • 12. Matter is everything around you. All matter has mass and volume. Which of these choices is an example of matter?
A) air
B) magnetism
C) light
D) sound
  • 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 rotting potato gives off a bad smell.
C) A cloud quickly changes shape when blown by wind.
D) A plaster statue breaks when it falls onto the floor.
  • 14. Which of the following is an example of physical change?
A) Baking a birthday cake for your mother.
B) Lighting a piece of paper on fire and the paper burns up and leaves ashes.
C) A glass cup falls from the counter and shatters on the ground.
D) Mixing baking soda and vinegar together, and this causes bubbles and foam.
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