We’re were so excited to see the news from NASA that they’d discovered 7 new Earth-sized planets with potential conditions for water (and perhaps life), that we’ve come over all Science-y! Follow the images for a cool art/science project to whip up a colourful explanation of a cloud, then make your own rain and cloud in a jar to will help children think about what conditions on these newly discovered planets might be like… https://www.theguardian.com/science/2017/feb/22/thrilling-discovery-of-seven-earth-sized-planets-discovered-orbiting-trappist-1-star
What You Need For Rain:
plastic zip-top bag (large enough to hold the cup standing up)
What You Do:
Fill the cup about 1/4 full with water.
Carefully set the cup inside the plastic bag and zip it closed.
Tap the bag with the cup inside to a window where a lot of sun comes in.
Check your cup and bag throughout the day and watch what happens.
As the sun heated up the water in the cup, some of the water evaporated into a gas called water vapour. You can’t see water vapour, but you can see what happened next. The water vapour turned back into a liquid and little drops of water formed on the inside of the bag—this is called condensation. When several droplets of water stuck together, they became heavy enough to pull each other down the sides of the bag. If you left this project taped to your window for long enough, all of the water from inside the cup should eventually end up in the bottom of the bag!
This is exactly how clouds form and make rain.
SHAVING FOAM CLOUDS- follow the images, shaving foam and food dye, what’s not to love! (And a simple visual demo of why rain falls)
Cloud in a Jar
Did you know you can make a cloud? It will be much smaller than the ones in the sky that bring us rain, but it forms in the same way as those in the sky.
What You Need:
a glass jar
small metal bowl or a metal baking sheet (should completely cover the opening of the jar)
a flashlight (optional)
an adult to help
What You Do:
Cut the black paper to fit halfway around the jar, leaving about one inch of space at the bottom of the jar. Tape it in place on the jar.
Add about two inches of warm water to the jar.
Fill the metal bowl or tray with ice cubes.
Have an adult light a match and hold it inside the jar for a few seconds and then drop it into the water.
Quickly cover the jar with the container of ice.
Look into your jar from the open side (so that the black paper makes a background at the back of the jar) and watch what happens.
You should start to see a cloud form! As the cloud gets bigger, it will be easier to see. To see the cloud even better, turn off the lights and shine a flashlight into the jar towards the black paper.