Page 22 - @ccess 3 Reader´s Book

Water Can Sink

You will need:

• Cold water
• Ice cubes
• Two jars
• Hot water (45º to 50ºC)
• Dark food coloring (green, blue or purple)

This is how to do it

Step 1
Add some dark food coloring to the water. Use that
water to make some ice cubes in the freezer.

Step 2
Heat some water (have an adult help you if needed)
and fill one jar to three quarters of its capacity.

Step 3
Gently place an ice cube in the hot water (don’t let it
splash or it won’t work) Take a look at what happens.

Step 4
Wait for the water to get cold. Then, fill one jar with hot
water and the other one with cold water. Put the jars
side by side.

Step 5
Add the ice cubes gently to both jars and compare
what happens.

Step 6
You may change the experiment by changing step 2,
adding some food coloring to the hot water and using
plain water for the ice cubes (as shown in setup 1).

Reader's Book 21