Sates of Matter

A state of matter that has no definite shape but has a definite volume.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

A state of matter with no definite shape or volume.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A state of matter that has a definite shape and a definite volume.

• Solid

• Liquid

• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A liquid’s resistance to flowing.

• Surface Tension

• Viscosity

The result of an inward pull among the molecules of a liquid that brings the

     molecules on the surface closer together.

• Surface Tension

• Viscosity

Chelsea went ice-skating. The ice, her skates, the Zamboni, and the rink building itself were all examples of solids she encountered. She developed a model of the particles in the ice. Which of these statements about the particles present in her model of a solid are true? Choose the THREE statements that apply.

• They vibrate in place.

• They slide past each other.

• They are packed very closely together.

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

The electricity went out at José’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

• Crystalline Solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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.

Tags

NGSS.MS-PS3-4

Many technologies use enclosed fluids. For example, a hydraulic press at an auto repair shop uses trapped water to lift heavy cars. Hot-air balloons heat trapped air to lift a basketful of people. Look at the two diagrams that model fluid particles.

Which statement best identifies which of these models represents a gas?

• Diagram B is a gas, because its particles move more slowly and are farther apart

• Diagram A is a gas, because its particles move more slowly and are closer together.

• Diagram B is a gas, because its particles move more quickly and are farther apart.

• Diagram A is a gas, because its particles move more quickly and are closer together.

Tags

NGSS.MS-PS1-4