Matter: Lesson 1 Review

Chelsea went ice-skating. The ice, her skates, the Zamboni, and the rink itself were all examples of solids. She developed a model of the particles in the ice. Which of these statements about the particles in her model of a solid is false?

• They vibrate in place.

• They slide past each other.

• They are packed closely together.

• They cause the solid to have definite volume and definite shape.

Chelsea went ice-skating. The ice, her skates, the Zamboni, and the rink itself were all examples of solids. She developed a model of the particles in the ice. Which three of these statements about the particles in her model of a solid is true? Choose all three!!!!

• They vibrate in place.

• They slide past each other.

• They are packed closely together.

• They cause the solid to have definite volume and definite shape.

The electricity went out at Jose's home, and he lit some candles until the lights came back on. The candle wax near the wick became soft right away, and melted over a temperature range. Which term best applies to the candle wax?

• amorphous solid

• amorphous liquid

• crystalline solid

• crystalline liquid

Motor oil has different ratings depending on how readily it flows. This property depends on how much attraction is present between its particles. Which property of a liquid does this illustrate?

• expandability

• flexibility

• surface tension

• viscosity

Mr. Allen wanted to fill balloons for a party. He rented a helium tank that contained 0.4 cubic meters of helium gas. He was concerned that the gas would not fill many balloons, but it filled 27 large balloons! Why was the small tank of helium gas able to fill so many balloons?

• Helium mixed with air when it came out of the tank.

• the helium expanded to fill its new containers, the balloons

• Helium molecules are very small in size

• The volume of gas in the balloons equaled the volume of gas in the tank

Which statement best describes a gas?

• particles move more slowly and are farther apart

• particles move more slowly and are closer together

• particles move more quickly and are farther apart

• particles move more quickly and are closer together

If the temperature a balloon were to decrease suddenly, how would the balloon change?

• its volume would decrease

• its mass would decrease

• its volume would increase

• its mass would increase

State of matter with no definite shape and no definite volume

• solid

• liquid

• gas

• plasma

State of matter with definite shape and definite volume

• solid

• liquid

• gas

• plasma

State of matter with no definite shape and definite volume

• solid

• liquid

• gas

• plasma