Easy Science Experiment for Kids: Walking Water


Science Experiment for Kids – ( TeK-THinK )

A fun science experiment for your kids to do that is not too messy, and is very colorful. You can make an indoor rainbow using the following items: 7 clear plastic (or glass) cups that are all the same size, paper towels, food dye (red, blue, and yellow), and water.

A safe and fun science experiment for kids

A safe and fun science experiment for kids

The first step is to put all 7 cups in a straight line next to each other so that the edges touch one another. Then you fill the 1st, 3rd, 5th, and 7th cup in the row with water about 3/4 of the way up. The 1st and 7th cups do not need to filled as full, about 1/2 of the way up. The 2nd, 4th, or 6th cup should not have any water in them.

The second step is to put food dye into the cups with water in them. The two outer cups (1 and 7) should have the same color in them. While the other two cups should have a different color in them. In example the cups with water could go: red, yellow, blue, red.

The third step is to then take 6 individual paper towels and fold each one in half the hot-dog way. Then you fold them again hot-dog. Then you fold it in half, hamburger way, so it is bent like you are making a paper fan. The next step is to cut the paper towels so they touch the bottom of the cup, as it is hard to work with them if they are longer than the height of the cups.

The fourth step is to place each paper towel in two cups that are next to each other. When you do this the paper towels will connect all of the cups together, as they will have the bent part in between cups next to each other.

You can leave the cups and paper towels like this for a few hours. When you return the water seems to have “walked” to the cup next to it. With the addition of the food dye it makes a rainbow throughout the cups.

This is a really cool experiment because it teaches diffusion of water from a higher amount to a lower amount, of color because it will travel with the water and mix to form new colors, and also the color spectrum. This will help your child learn in a fun way that is not too difficult to do. Once done you can take a picture of it and then just throw away the paper towels and rinse out the cups.
Hands on experiments helps kids learn because they not only teach kids about what is happening, but being able to do an experiment yourself creates a life-long memory and bonding time with your children.