Sinking and Floating Balloons

A Science Experience For Kindergarten Children – Sinking And Floating

One of the mindboggling situations for parents is to select the right science projects for their kindergarten school kids. What many do not know is that since science is all around us, there are so many things that they could guide their children to do to satisfaction. The effect of density of gasses – nitrous oxide, carbon dioxide and helium on the floating and sinking of balloons is also worth studying. Now, there are children and then there are kindergarten age children. simplicity is the key for the latter but at the same time, the experiment has to be attractive enough to captivate them. The simplest experiment at this age is to find out why some things float and others sink. It should be very easy but first, you need to set a few things in order.


What will you need?

First, explain to the children the law of density, the density of things against that of water. Maybe they will not grasp the concept but in future, they will remember that. You need a basin of water, just enough to avoid splashing about. You also need to collect a few items like small rocks, pieces of plastic and so forth. Just advice the children about what they need to collect. This experiment should be very easy.


Give the children a free hand in trying out the experiment. Let them try sinking or floating different materials and then be ready for a barrage of questions later on. For example if the kids see a ship on the TV, they will want you to explain why it is not sinking. Such small experiments are fun for both parents and kids.


Do not let the children go near a lot of water like the swimming pool to try the floating experiments. In fact, the first rule of science experiments at home is that nothing should be tried without your approval. Some experiments could be dangerous. When you are studying floating and sinking, perhaps that would be a good time to study dissolution. Why do some things dissolve in water and others do not? why does milk mix with water while oil does not? the good thing with science is that there are many interesting things to explore and therefore you should make everyday a science experiment day.


Ask any science teacher and they will tell you that water experiments are the best for kids. First, water is virtually harmless unless it is hot or flowing in the river, in the sea or in the swimming pool. Every time can be a water experiment moment. For example, even when cooking, it would be a good time to explain why hot water has bubbles, how much water takes to boil and so forth. There is no limitation when it comes to water experiments at home. However, remember that the most important thing is supervision.


There are many demands of parenting but that does not mean that a parent should not practice science with their kids. With both parents working, it would be better to turn every possible opportunity into a time of science experiments. Why don’t rivers flow uphill? How do you measure the volume of water? how do irregular shapes behave in water? These and more are paramount if someone wants to make science  learning easy for their kids and the good news is that they will have all the resources that they might need on this website. Why do sponges absorb water, and how much can they absorb? These and more are some of the simplest water science experiments for kids at home.

Now for Balloons…

Kids are very familiar with balloons so it is easy enough to substitute the  usual gas (air) with other global gases this helps to get the idea that everything – even invisible gases has a mass – you’ll need to make a sensitive top-pan balance and then simple fill one balloon with air then compare it with another filled with nitrous oxide, carbon dioxide or helium. Kids are particularly amazed to learn the the gas there dentist gives them (nitrous oxide) will in fact sink – they always think that it’s a floater!