Q 1.1 States of Matter

Sasha is observing a substance under a mighty microscope. The particles vibrate in place, and the object has a definite shape. What is Sasha observing?

• Matter in the solid state.

• Matter in the liquid state.

• Matter in the gaseous state.

• Matter in the plasma state.

Antonio moved a substance to a different container. It had a different shape. The shape of the substance changed to adapt to the new container but the volume stayed the same. Antonio is working with ___.

• a solid

• a liquid

• a gas

• vapor

The properties of a substance depend on the properties of the ___ that make up that substance.

• particles

• legos

• ratios

• words

Mariana's science notes say there are at least two states of matter characterized by particles that can flow. What are these two states of matter?

• solid

• liquid

• gas

• congealed

Observe the picture. What state of matter are you watching?

• Solid

• Liquid

• Gas

• Plasma

Observe the picture. What state of matter are you watching?

• Solid

• Liquid

• Gas

• Plasma

Observe what is happening. The oxygen gas is being ___; the volume is decreasing.

• compressed

• expanded

• destroyed

• deformed

When heat is added to the particles that make up a solid, the ___.

• speed of the particles increases

• temperature decreases

• distance between particles decreases

• particles change their size

Which of the following is NOT a characteristic of liquids?

• They have a definite shape.

• They have a definite volume.

• They can flow.

• Their particles are close to each other.

Alexa heated a substance. What can she never expect to happen?

• A change from solid to liquid

• A change from liquid to gas

• A change from liquid to solid

• A change from solid to gas.