Matter Unit Review Game Write down your answer first. If you get it correct, write down the number of points you earned. If you get it wrong, don’t write down any points.

Question #1 (20 points) 1. What is the melting point of this substance? E D C B A

Answer #1 (20 points) 0°C

Question #2 (30 points) 2. What is the boiling point of this substance? E D C B A

Answer #2 (30 points) 100°C

Question #3 (40 points) 3. When this substance is at 54°C what state of matter is it in? E D C B A

Answer #3 (40 points) Liquid

Question #4 (10 points) When this substance is at 115 °C what state of matter is it in?

Answer #4 (10 points) Gas

Question #5 (40 Points) Explain why the melting and freezing points are the same for a substance.

Answer #5 (40 points) Anything above this temperature point the substance melts, but anything below it begins to freeze. This is why the melting and freezing points are the same.

Question #6 (10 points) What is the melting point of ice in °C?

Question #6 (10 points) 0 °C

Question #7 (10 points) What is the boiling point of water in °C?

Answer #7 (10 points) 100 °C

Question #8 (10 points) What is the freezing point of water in °C?

Answer #8 (10 points) 0 °C

Question #9 (20 points) A student is attempting to melt an iron nail for a home experiment. The student puts 1 nail in Pot #1 and 3 nails in Pot #2. The student heats both pots on high for the same amount of time. Which would be true about its temperature changes? A. Pot #1 will have a greater change in temperature because there is less volume. B. Pot #2 will have a greater change in temperature because there is more volume. C. Pot #1 and #2 will have the same change in temperature because they are melting the same substance. D. Pot #1 will have a smaller change in temperature because there is less volume.

Answer #9 (20 points) A, Pot #1 will have a greater change in temperature because there is less volume. There is only 1 nail in there instead of 3.

Question #10 (20 points) In the same situation as the previous question, which would be true about the melting points of the iron nails? A. Pot #2 would have a higher melting point because it is filled with more mass. B. Pot #1 would have a higher melting point because it is filled with less mass. C. Pot #1 and #2 would have the same melting points because they are filled with the same substance. D. None of the above answers are correct.

Answer #10 (20 points) C. Pot #1 and #2 would have the same melting points because they are filled with the same substance.

Question #11 (30 points) A student is boiling milk at home to make hot chocolate for herself and her friends. In Pot #1 she adds 1 L of milk. In Pot #2 she adds 10 L of milk. Which would be true about the boiling point of each pot? A. Pot #1 would have a lower boiling point because it has a lower volume. B. Pot #2 would have a lower boiling point because it has a higher volume. C. Pot #1 and Pot #2 would have the same boiling point because each contains the same substance.

Answer # 11 (30 points) C, Pot #1 and Pot #2 would have the same boiling point because each contains the same substance.

Question #12 (30 points) A camper roasts marshmallows in a campfire. She hears the marshmallow crackling as it cooks and she sees smoke rising from the fire. Which is a form of matter? A.The crackling sound B.The smoke C.The heat of the fire

Answer #12 (30 points) B. The smoke

Question #13 (40 points) How do you find the volume of a box? A.Length + width + height B.density ⁄mass C.Weight – Newtons D.Length x width x height

Answer #13 (40 points) How do you find the volume of a box? D. Length x width x height

Question #14 (20 points) A substance that contains only one type of atom is a(n) A.mixture B.compound C.element D. atom

Answer #14 (20 points) A substance that contains only one type of atom is a(n) C. element

Question #15 (30 points) Two oxygen atoms bond with one carbon atom to form carbon dioxide. Carbon dioxide is a(n) A.molecule B. atom C.proton D.element

Answer #15 (30 points) Two oxygen atoms bond with one carbon atom to form carbon dioxide. Carbon dioxide is a(n) A. molecule

Question #16 (20 points) The atoms and molecules in your pencil A. move only when the pencil is being used B. vibrate back and forth in place C. don't move at all D. slide from place to place through the pencil

Answer #16 (20 points) The atoms and molecules in your pencil B. vibrate back and forth in place

Question #17 (30 points) Melted candle wax has no fixed shape, but it does have a fixed volume. So melted candle wax is a A. plasma B. liquid C. gas D. solid

Answer #17 (30 points) Melted candle wax has no fixed shape, but it does have a fixed volume. So melted candle wax is a B. Liquid

Question #18 (20 points) What is the volume of a box that is 10 cm wide, 10 cm long, and 1 cm high? A.21 grams B.21 cm² C.100 grams D.100 cm³

Answer #18 (20 points) What is the volume of a box that is 10 cm wide, 10 cm long, and 1 cm high? D. 100 cm³

Question #19 (30 points) The atoms that make up a gas can move, A. but the atoms that make up solids do not B. and so do the atoms that make up solids and liquids C. but the atoms that make up solids and liquids do not D. but they only shake back and forth in place

Answer #19 (30 points) The atoms that make up a gas can move, B. and so do the atoms that make up solids and liquids

Question #20 (20 points) What causes phase changes (EX: sublimation, freezing, boiling) are caused by what? A. Changes in shape. B. Changes in volume. C. Changes in temperature. D. Changes in pressure.

Answer #20 (20 points) What causes phase changes (EX: sublimation, freezing, boiling) are caused by what? C. Changes in temperature.

Question #21 (30 points) You fill up a graduated cylinder with 12 mL of water. Then you place 10 pennies into the graduated cylinder and the level of the water moves up to 20 mL. What is the volume of the 10 pennies?

Answer #21 (30 points) You fill up a graduated cylinder with 12 mL of water. Then you place 10 pennies into the graduated cylinder and the level of the water moves up to 20 mL. What is the volume of the 10 pennies? 20 mL - 12 mL = 8 mL

Question #22 (120 points) Phase of Matter Definite or Indefinite Shape Definite or Indefinite volume Solid Liquid Gas

Question #22 (120 points) Phase of Matter Definite or Indefinite Shape Definite or Indefinite volume SolidDefinite LiquidIndefiniteDefinite GasIndefinite

Question #22 (10 points each) Physical (P) or chemical (C) properties? A.Water boils at 100 o C. B.The metal spoon is blue. C.Paper burns. D.Sodium bicarbonate is tiny white crystals. E.Sulfur burns dark red color.

Question #23 (10 points each) Physical (P) or chemical (C) changes? A.Water boils to steam. B.Paper burns to ashes and smoke. C.A student spreads butter and jam on toast for breakfast. D.Silver reacts with water vapor in the air to form tarnish. E.Corn, oil and heat combined form popcorn and steam.

To Win: Add up your total # of points you earned!!