Students participate in an experiment about the weight of water. They work together to discover that seawater is more dense than fresh water. They also determine which objects float and sink.

Students examine how salt water is more dense than fresh water through experimentation with eggs.

This is an educator's guide for a unit on things that sink or float. It includes lesson plans, experiments, and activities. Young scholars apply the scientific method as they investigate whether objects sink or float.

Students investigate water by estimating how long it takes to freeze, then see if the ice cube will float in water, and eventually work with other items to see if they sink or float in water.

An experiment in density. After a review of floating and sinking of different materials, learners test four bottles, all holding four ounces of water, to see if they will float or sink. They each contain a different density of sugar...

For this activity, students make predictions about whether different objects float or sink, then test them. They are asked to record their observations and results for each, and compare their results to others'.

Balance the force of gravity with the force of the expanding gasses created by mixing baking soda and vinegar. Create a soda bottle submarine that sinks to the bottom of the bathtub and then rises back to the surface.

Students will explore matter that sinks or floats when submerged in water and that matter is categorized as either a sinker or a floater. Students will work actively in small, cooperative learning groups as well as gather in a whole...

Use this activity guide to discover about boats and learn some water science.