Kids Science Project for 7th grade


Have you ever noticed that salt is sold in the store when we have snow and ice on the roads? If you have ever wondered about salt and what effect it has on the water. If you put salt on frozen ice on the road it seems to melt as it is to keep the water from freezing? You’ve just discovered a science project for school fair.

Science projects are right under our noses and can be as simple to find as looking at what we do every day in our lives.

This experiment will not cost you anything but a little ordinary table salt.

brings together 3 containers you can put water and freeze. They should be plastic that will freeze well. Also you do not want to be too large. If you can use sour cream container or several small plastic bowls cereal works well.

Fill each container half full with water from the tap.

  1. The first bowl put 2 teaspoons of salt and stir well to dissolve most of the salt
  2. In another container put in 1 teaspoon of salt and stir to dissolve
  3. In the last cup only water and no salt.

Make sure the water is room temperature.

Now put them all on a baking sheet and place in the freezer for a stable place that will not tip over.

Leave these there all day or overnight. In the morning remove the containers and a visual inspection.

Were all the containers frozen solid? If they were not frozen anything? Did something not freeze at all?

Did the amount of salt in water affect how much water froze?

make sure to record the information and take pictures. This project is not a show that you can do right in a fair but you can show what happened to the salt and water mixture on a science project.


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