States of Matter and Energy

Front

State of matter with definite volume and shape.

Back

solid

Front

At 0°C, water _________.

Back

freezes

Front

Sand is a _____________.

Back

solid

Front

Adding heat to matter causes its particles to:

Back

move faster and farther apart

Front

Solid CO2 (dry ice) changes from solid to vapor at room temp. What happens to the motion of the molecules?

Back

The energy of the molecules and the spaces between them increase.

Front

Dry ice is solid CO2. At room temp, it turns to gas. This is called:

Back

sublimation

Front

Water puddles evaporate when heated by the Sun. What happens during evaporation?

Back

Water becomes a gas as it absorbs energy from the Sun.

Front

Raphael studies water molecules as ice melts. Describe the movement changes of water molecules with heat.

Back

Molecules in solid are unmoving in a rigid lattice. As ice melts, they vibrate, release from the lattice, and move freely, drifting apart to form a liquid.

Front

At higher temperatures,

Back

particles in an object move faster.

Front

Particles in a __________ have more energy than other states of matter.

Back

gas