Kindergarten - 4th Grade Engineering and Science Inquiry Activities : Page 5

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Learn about magnifying glasses, concave lenses and inverted images by sending rays of light through a magnifying glass in this cool science fair project!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Make scented sensory cloud dough. Add it to a sensory table, activity station, or put it in a baggie for extra at-the-park entertainment!

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.

How powerful is the reaction between baking soda and vinegar? Find out here!

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.

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

Plants and light seem to be good buddies, but how far does the friendship really go?

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

In this pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.