Some science that's sure to float your boat.

Materials Needed
water
2 eggs
liquid soap
cooking oil
salt
sugar
glass
tablespoon
balance scale

Instructions
- Fill a glass half full with water. Place an egg into the water. The egg will sink because it is more dense than the water.
- Start adding salt to the water one tablespoon at a time. Help the salt dissolve by stirring it into the water.

What happens? How much salt do you have to add to get your egg to float?

Ready for us to float the science scoop?

Adding salt to the water squishes more molecules into the water. This makes the water more dense. When there was no salt in the water, the egg was more dense than the water and it sank. Adding salt to the water makes the water more dense than the egg which makes the egg float. If you weigh a cup of saltwater and a cup of fresh water, the saltwater will weigh more than the fresh water even though it is taking up the same amount of space (a cup). This is because the saltwater is more dense than the fresh water.