Changes of State Diagram

Have your child read the reading, word bank or fact box first, since every answer is on the page. Act out the particles: stand still and wiggle for a solid, slide past each other for a liquid, spread out for a gas. Check with the answer key.

Write melting, freezing, evaporation and condensation on a changes of state diagram. A change of state is when matter changes from a solid, liquid or gas into another state. Heating and cooling cause these changes. The directions on the page read: Read the word bank. Write the name of each change on the line by its arrow. Then, write the change that happens in each event. The answer key shows every answer.

Yes, both. We made it for 3rd Grade matter, and the page works the same whether it lands on a kitchen table or a center rotation. At home, most families go through it together and talk the answers out loud, and that talking is where most of the learning happens with states of matter. In class it runs well as independent work while you pull a small group. Print one copy or thirty, whichever the day needs.

Solid, liquid and gas. A solid keeps its own shape, a liquid takes the shape of its container, and a gas spreads out to fill whatever it is in. Air is a gas, and gases are matter too.

In a solid, particles are packed tight and wiggle in place. In a liquid, they are close together but slide past each other. In a gas, they are far apart and zoom around fast. Heating makes particles move faster, and cooling slows them down.

Evaporation is a liquid turning into a gas, like a puddle drying up in the sun. Condensation is a gas turning into a liquid, like drops forming on a cold glass. Melting and freezing are the changes between solid and liquid.

Yes. All four states of matter sheets have an answer key that shows every answer.