Properties of Matter
How can you prove that air takes up space?
A. Measuring how long a deflated balloon takes to fill
B. Feeling the weight of air inside a tire
C. Comparing the size of a flat balloon to an inflated one
D. Checking the temperature of air in different containers
C. Comparing the size of a flat balloon to an inflated one
A student places 150 grams of water and 50 grams of ice in a beaker. What is the total mass after the ice melts?
A. 150 grams
B. 200 grams
C. 100 grams
D. 250 grams
B. 200 grams
What is the best evidence of a chemical reaction?
A. A liquid boils into steam.
B. Two liquids mix, and bubbles form.
C. Sugar dissolves in water.
D. A solid melts into a liquid.
B. Two liquids mix, and bubbles form.
Which observation shows a new substance?
A. The mixture becomes cloudy.
B. The temperature increases without adding heat.
C. The mass of the mixture increases.
D. The color stays the same.
B. The temperature increases without adding heat.
What happens when you mix vinegar and baking soda?
A. They stay the same and do not interact.
B. They produce bubbles of gas and foam.
C. The baking soda disappears completely.
D. They turn into a solid block.
B. They produce bubbles of gas and foam.
What is always true about the particles in matter?
A. They can only be found in solids and liquids.
B. They are so small we cannot see them without special tools.
C. They move faster in cold objects than in hot objects.
D. They are visible when mixed in water.
B. They are so small we cannot see them without special tools.
A dish weighs 100 grams. It holds 20 grams of ice cream, which melts. What is the total mass after melting?
A. 100 grams
B. 120 grams
C. 80 grams
D. 50 grams
B. 120 grams
Which observation shows a new substance was created?
A. A liquid changes color when a solid dissolves in it.
B. A solid melts into a liquid.
C. Water freezes into ice.
D. Sugar is stirred into water and disappears.
A. A liquid changes color when a solid dissolves in it.
What happens to the mass of a glass of water when an ice cube melts inside it?
A. The mass gets smaller because the ice melts.
B. The mass stays the same because no water is lost.
C. The mass increases because the water is colder.
D. The mass disappears along with the ice.
B. The mass stays the same because no water is lost.
Why does salt dissolve in water?
A. The water breaks the salt into tiny particles.
B. The salt becomes invisible in water.
C. The salt turns into gas in the water.
D. The salt stays whole but mixes evenly.
A. The water breaks the salt into tiny particles.
Which tool allows scientists to study particles in matter?
A. Thermometer
B. Graduated cylinder
C. Microscope
D. Scale
C. Microscope
If 200 grams of water and 100 grams of ice are in a container, what happens when the ice melts?
A. The mass increases to 300 grams.
B. The mass stays the same at 300 grams.
C. The mass decreases to 200 grams.
D. The ice disappears, leaving 200 grams.
B. The mass stays the same at 300 grams.
A solid dissolves in a liquid, and the liquid gets colder. What happened?
A. A chemical reaction occurred.
B. The solid disappeared.
C. The liquid lost weight.
D. The mixture cooled naturally.
A. A chemical reaction occurred.
Which observation shows that a solid dissolved in a liquid but did not create a new substance?
A. The liquid gets colder as the solid dissolves.
B. The solid dissolves, and the liquid stays clear.
C. The liquid bubbles and makes a new smell.
D. The solid changes color as it dissolves.
B. The solid dissolves, and the liquid stays clear.
How can you show that sugar has dissolved in water?
A. The water gets colder after adding sugar.
B. The sugar crystals cannot be seen, but the water tastes sweet.
C. The water turns a different color.
D. The sugar sinks to the bottom of the glass.
B. The sugar crystals cannot be seen, but the water tastes sweet.
When matter changes form, what always stays the same?
A. Its temperature
B. Its mass
C. Its color
D. Its appearance
B. Its mass
What could show a chemical reaction?
A. A liquid and powder make bubbles.
B. A liquid turns to steam when boiled.
C. A solid melts into a liquid.
D. A powder dissolves completely.
A. A liquid and powder make bubbles.