Showing Results for add and subtract

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Find out whether we can create motion in a dish and as a result, create a wonderful and colorful show.

In this science fair project, young children discover what happens when two fluids that have different densities get together.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.