Welcome to our fun science adventure! Today, we’re going to learn about how matter can change from one form to another when we heat it up or cool it down. Are you ready? Let’s go!
Matter is anything that takes up space and has weight. Everything around us is made of matter, like water, air, and even the chair you’re sitting on!
Matter can be in three different states: solid, liquid, and gas. Let’s explore these states using water as an example.
When water is frozen, it becomes ice, which is a solid. Solids have a fixed shape and don’t flow like liquids.
When we heat ice, it melts and turns into liquid water. This process is called melting. Liquids can flow and take the shape of their container.
If we keep heating the water, it turns into a gas called water vapor. This process is called evaporation. Gases spread out and fill the space they’re in.
Now, let’s see how water can change back to a liquid and then to a solid.
When water vapor cools down, it turns back into liquid water. This is called condensation. You might see this on a cold glass of water on a hot day!
If we cool liquid water in a freezer, it turns back into ice. This process is called freezing.
Try this at home with an adult’s help: Freeze some water to make ice, then watch it melt back into water. You can even boil the water to see it turn into steam!
Thanks for joining our science adventure! Keep exploring and discovering new things. See you next time!
Ice Cube Observation: With an adult’s help, take an ice cube and place it in a small bowl. Observe what happens to the ice cube over time as it sits at room temperature. Discuss with your adult helper:
Water Cycle in a Bag: Create a mini water cycle! You will need a clear plastic bag, a permanent marker, and some water.
Melting Race: Gather different small items that can melt, such as chocolate, butter, and a crayon. With an adult’s help, place each item on a separate plate and put them in a warm spot.
[Music] Welcome back to my virtual science lab! Today, I want to demonstrate how matter can change from one state to another when it is heated or cooled. Here we have some ice, a plate, two beakers, a burner, a tripod with a gauze, and a freezer.
Ice is matter in a solid state; it’s frozen water. Let’s pour the ice into the beaker and light the burner. As the ice is heated, it begins to change into a liquid, a process called melting. When water is heated, it changes state again into a gas, known as water vapor, through a process called evaporation.
When the rising water vapor comes into contact with the plate, it cools, causing it to change back into liquid water. This process is called condensation. How would liquid water change state if it were cooled in a freezer? You guessed it! It changes back into solid ice, a process called freezing.
Thanks for watching! See you next time! [Music] Don’t forget to subscribe!
