Science fair project that tests the effects of diluted soap on the size of bubbles blown from the solution. Will dilution cause smaller bubbles?

The objective this science fair project is to determine whether a bigger bag will allow a homemade hot air balloon to fly higher than smaller bag.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

This project leads to an understanding that a whole may be built of smaller parts that fit and work together and provides an introduction to basic tools.

Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

This tricky building block challenge asks your learner to think creatively. They will work on their divergent thinking skills as they try to fill up an index card perfectly with building bricks.

Plant sunflower seeds , measure height, calculate average height, compare size and weight of heads. Interpret findings in detailed report.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

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!

Learn how to make a periscope with this cool engineering science fair project idea, and learn about optics to learn how a periscope works.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

This experiment uses Rosenberg's Self Esteem Scale to evaluate if there is a correlation between family size and self esteem.

This experiment will use computers to examine how the famous Mandelbrot set can be manipulated in fractals.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.

Determine whether the relationship between a personâs armspan and height are genetic.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

Kids will love making clouds and learning how to make a water cycle model in this fun science fair project idea that explores evaporation and precipitation.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Learn how milk freezes into ice cream. Does the fat content affect how quickly the milk freezes? What is salt's role in the freezing process?