Showing Results for two digit using place value : Page 5

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

This fun elementary school science fair project idea helps students in designing an amusement park using their knowledge of forces and simple machines.

Science fair project that examines search engine optimization, internet search trends using a statistical study of searched keywords.

In this activity, your child will be challenged to make a tower using paper cups.

Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.

Determine how different measurements of the same object might yield different values. Provide as many reasons that you can think of.

In this design challenge, your child will make a bottle rocket using typical household items.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

A fun, life science sxperiment idea idea involving strategies for keeping birds away from crops using a distress call. What kind of distress call works best?

Science fair project which helps you determine your latitude by using an astrolabe, which measures the angle between the North Star and the horizon.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

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

Kids learn how fiber optics work with a dramatic total internal reflection experiment using a fish tank, water, and a laser pointer.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Design and build a scale model representing living tree architecture. Then build a full-size version using one or more lives trees, and test your creation.

Look for correlation between pH values of commercial soaps and detergents and manufacturer claims about eye irritation hazards.

Test for a correlation between perceived color and heart rate. Using a stethoscope and stop watch, measure the heart rate (beats per minute) of volunteers.

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Gymnosperms are coniferous trees that reproduces using pine cones to spread seeds. Check out this simple pine cone experiment to learn about the process!

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.