The Water Jar Experiment

This is the first of many posts by Nicholas. If you're a Mum or Dad who is homeschooling your children and using lots of worksheets, you will change your mind once you listen to my ideas!

SO - let's get on to our first experiment...

1st step - take a jar

2nd step - fill the jar with cold water (reminder: always make the water COLD - as cold as you can get it)

3rd step - put the jar, filled with water, in a sunny window - what do you think will happen to the water?

4th step - wait for 2 hours

5th step - pour the water on your wrist - is it warm or cold?

ANSWER:

The water will have warmed up. Why? Because the sun's radiation heats it up. You can google that to find out more about how that works.