Chapter 5 Review Game

1. Why is color a physical property?

• Color can be observed without changing the object.

• 2. What is a physical property that does not change with the amount of matter?

• Melting point, boiling point and density do not change with the amount of matter.

• 3. What happens during a physical change?

• The appearance of matter change, but the composition does not change.

• 4. What type of change is a change of state?

• A physical change

• 5. What happens during a chemical change?

• During a chemical change, substances are change into different substances.

• 6. What are three clues that a chemical change has occurred?

• Change in color, loss or gain of energy, change of smell and production of a gas or a solid

• 7. What is an examples of a chemical change?

• Possible answers could include anything burning, rusting or tarnishing. Other answers are also possible given teacher approval.

• 8. What is the law of conservation of mass?

• The law of conservation of mass states that the total mass of matter is the same before and after a physical or chemical change.

• 9. What changes when the mass of an object increases while the volume stays the same?

• A. Color• B. Length• C. Density• D. Height

Answer = C, density

• 10. What word best describes the type of materials that attract iron?

• A. Magnetic• B. Chemical • C. Mass• D. Physical

• Answer = A, magnetic

• 11. Which is an example of a chemical property?

• A. Color• B. Mass• C. Density• D. Ability to burn

• Answer = D, ability to burn

• 12. Which is an example of a physical change?

• A. Metal rusting• B. Silver tarnishing• C. Water boiling• D. Paper burning

• Answer = C, water boiling

• 13. What characteristic best describes what happens during a physical change?

• A. Composition changes• B. Composition stays the same• C. Form stays the same• D. Mass is lost

• Answer = B, composition stays the same

• 14. Which is an example of a chemical change?

• A. Water freezes• B. Wood is carved• C. Bread is baked• D. Wire is bent

• Answer = C, bread is baked

• 15. Which is NOT a clue that could indicate a chemical change?

• A. Change in color• B. Change in shape• C. Change in energy• D. Change in odor

• Answer = B, change in shape

• 16. What property stay the same during physical and chemical changes?

• A. Density• B. Shape• C. Mass• D. Arrangement of particles

• Answer = C, mass

• 17. What kind of change is taking place when you cut a piece of cake from the whole?

• Answer: physical change

• 18. What kind of change is taking place when a candle is being burnt?

• Answer = a chemical change

• What could you do to an object to cause a chemical change?

• A. Cut it• B. Paint it• C. Throw it• D. Burn it

• Answer = d, burn it

• Which of the following physical properties is size dependent?

• A. Density• B. Mass• C. Volume • D. Weight

• Answer = A, density

• Which of the following choices describes a physical change?

• A. Pouring an acid onto calcium carbonate• B. Dropping an antacid tablet into water• C. Heating water to its boiling point• D. Pouring vinegar onto baking soda

• Answer = c, heating water to its boiling point

• Which of the following occurs as you heat a liquid to its boiling point?

• A. Condensation• B. Melting• C. Vaporization• D. Freezing

• Answer = c, vaporization

• Which of the following is a chemical reaction?

• A. Making ice cubes• B. Toasting bread• C. Slicing a carrot• D. Boiling water

• Answer = b, toasting bread

• When you making and eat scrambled eggs, many changes occur to the eggs. Which of the following best describes a chemical change?

• A. Crack the eggs• B. Scramble the eggs• C. Cook the eggs• D. Chew the eggs

• Answer = C, Cook the eggs

• What is the formula that should be used to find density?

• Answer = D = m ÷ v

• (Density = mass divided by volume)

• Tell me at least 3 physical properties.

• Answer = Physical properties include: state, color, shape, smell, taste and texture, mass, volume, density,

melting point and boiling point.

• What happens if vaporization or condensation occurs?

• Answer = substance changes from a liquid to a gas

• What is sublimation?

• Answer = when a solid changes directly to a gas

• What is deposition?

• Answer = when a gas changes to a solid without ever becoming a liquid

• Fill in the blanks:

• If I observe the color of a leaf, I am looking at its _____________. When leaves change color in the fall, it is a ________________.

• Answer = physical property; chemical change

• What does the law of conservation of mass say?

• Answer = the law of conservation of mass says that mass cannot be created or destroyed during physical and chemical changes that take place.