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Physical Properties of Matter
Heating and Cooling
Mixtures and Solutions
Random
100
Students are working with mixtures. In a large bag they combine jelly beans, rice, pennies, beans, and paper clips. Why can these items be easily separated? a. Some of the items are attracted to magnets. b. All of the items are solids. c. Some of the items are buoyant and will float. d. Some of the items are more dense.
b. All of the items are solids.
100
Which of the following would cause an ice cube to melt? a. covering the ice cube with foil b. adding thermal energy to the ice cube c. putting the ice cube in a dark place d. returning the ice cube to the freezer
b. adding thermal energy to the ice cube
100
A mixture of sugar and water is different from a mixture of sand and water because when sugar is mixed with water, the sugar- a. floats on the water, but sand sinks b. can't be removed, but sand can c. dissolves in water, but sand does not d. can be removed with a magnet, but sand cannot
c. dissolves in water, but sand does not
100
Korie was making some Kool-Aid. He poured the powder and sugar into the pitcher and added water. Scientifically speaking, he made a - a. solution. b. glass of Kool-Aid. c. cold drink. d. mixture.
a. solution
200
Sam and a few friends were playing with a beach ball in a swimming pool. Sam tries several times to hold the ball under water, but it immediately pops up when when he releases it. What is causing the ball to pop up? a. The ball is filled with air that causes it to float. b. The ball is filled with air that causes it to sink. c. The ball is round and its shape causes it to float. d. The ball is filled with heavy material that causes it to sink.
a. The ball is filled with air that causes it to float.
200
On a hot, summer day, water droplets form on the outside on the outside of a cold glass of water. The water droplets form when water vapor in the air- a. loses heat on the cold glass b. reacts with chemicals in the air c. gains energy from sunlight d. is moved about quickly by wind
a. loses heat on the cold glass
200
Which mixture could be separated easily by pouring it through a paper towel? a. milk and water b. sand and water c. salt and water d. juice and water
b. sand and water
200
Which of the following is an example of a solution? a. Pure water b. Salad c. Chocolate chip cookie d. Lemonade
d. lemonade
300
What tool and unit of measurement should be used to describe the mass of an alien? a. meter stick and grams b. balance and grams c. graduated cylinder and liter d. balance and liter
b. balance and grams
300
What happens when a liquid is cooled? a. melting b. no change c. evaporation d. freezing
d. freezing
300
Students made two mixtures. Mixture 1 was salt and water. Mixture 2 was iron fillings and sand. Which of the following statements is true for both mixtures. Both can be separated- a. by pouring them though a filter b. back to their original ingredients c. using the property of magnetism d. out into a liquid and solid
b. back to their original ingredients
300
Sarah mixed sand and water in a bucket. How could she separate the two substances? a. She could pour the water and sand through a filter. b. She could dump it out and start over. c. She could pour the water and sand through a large wire screen. d. She could not separate the sand from water.
a. She could pour the water and sand through a filter.
400
Students were doing an investigation during science class. They noticed that as they brought a magnet closer to paper clips, the magnet picked up more clips. As they moved the magnet away from the paper clips, the magnet picked up fewer paper clips. What conclusion can they make? a. The largest magnet picked up the most paper clips. b. Magnetism is strongest when the magnet is closest to the object. c. Magnetism is weakest when the magnet is closest to the object. d. The distance between objects does not affect the strength of a magnet.
b. Magnetism is strongest when the magnet is closest to the object.
400
A candle is left outside on a hot day. All of the following will likely happen except- a. change of state b. change from liquid to gas c. some melting d. change in shape
b. change from liquid to gas
400
One group mixed salt with warm water and the other mixed sugar with warm water. How are the mixtures the same? In both mixtures- a. the results change color b. the water gets cooler c. the ingredients form layers d. a solid dissolves in the water
d. a solid dissolves in the water
400
Jamie takes a Hershey's chocolate bar with her to soccer practice. She plans to eat it after practice so she leaves it in the car. Which of the following is a physical change you predict will occur as a result of Jamie leaving the candy bar in the car? a. It will become a different substance. b. It will taste better. c. It will change shape. d. It will freeze and become too hard to eat.
c. It will change shape
500
Ashley wants to measure the volume of a golf ball. Which tool would she use? a. graduated cylinder b. balance c. thermometer d. magnifying glass
a. graduated cylinder
500
A frozen pond melts in the spring. Why does this happen? a. there are more days with rain b. many plants begin to grow leaves and flowers c. days are warmer and the sun shines longer d. humans get to spend more time outside
c. days are warmer and the sun shines longer
500
Which of the following could be separated with a magnet? a. aluminum cans and iron cans b. plastic cups and paper cups c. wooden blocks and plastic blocks d. pencil leads and rubber erasers
a. aluminum cans and iron cans
500
Condensation is the process of a gas changing into a liquid. What caused the liquid to form on the outside of the glass of ice water? a. When air touches the side of a cold glass, the air heats up. This causes water vapor to evaporate. b. When air touches the side of a cold glass, the air cools. This causes it to evaporate. c. When air touches the side of a cold glass, the air cools. This causes the water vapor to condense and to form liquid water on the outside of the glass. d. When air touches the side of a cold glass, the air heats up. This causes it to melt and then liquid forms around the glass.
c. When air touches the side of a cold glass, the air cools. This causes the water vapor to condense and to form liquid water on the outside of the glass.