Showing Results for three digit and two step word problems : Page 30

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

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

Check out this cool science fair project idea to explore short and long term memory and whether there is gender differences in memory.

Check out this fun science project idea to measure the amount of vitamin C in ripe, half-ripe, unripe and stored oranges.

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This science fair project idea compares the mass and density of objects.

Discover how and which salt melts ice the quickest.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

The objective of this science fair project is to determine whether there are gender differences when boys and girls view optical illusions.

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.

Making your own glass cleaner is easy, effective and inexpensive!

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Is there really such a thing as healthy gum? Students will learn what factors in chewing gum contribute to healthy teeth in this exciting science fair project.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Demonstrate that insects observe colors and choose favorites. Place colored pieces of construction paper on a flat, glassy surface, observe bug preference.

Discover whether eating certain foods will make you smell (not only bad breath) but through skin cells.

Help your fifth grader embrace the roots--literally--of Mother's Day by growing carnations to honor mothers in you family's history.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

Some fossils have been been preserved for billions of years! Help your kid understand how fossils are created and preserved with this crafty project.

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."