Showing Results for three digit using place value : Page 44

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

This fun activity makes use of pasta shells, paint, and glue make a crab while your child learns about this unique creature.

Explore convex and concave objects and how they reflect light.

Evaluate the efficacy of different pain management techniques.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.

Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.

Learn about what happens to a current-carrying wire in a magnetic field in this cool electromagnetism experiment!

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Help children understand the power of germs and the importance of hand washing with this visual activity that introduces the concept of scientific inquiry.

Are red apples really sweeter than green apples? The objective of this science fair project is to test the theory with quantitative evidence.

The projects describes the correlation between Gravel Run and Centreville Landing in terms of pH, dissolved oxygen, turbidity, and temperature.

Hone your child's skills of observation and take a look at forensic science for an interesting afternoon of exploration and detective work!

This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Science fair project that studies how perfumes are made in order to determine how we can capture a scent.

In this science fair project on the relationship between distance and time, kids explore the behavior of gravitational acceleration through direct observation.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Test the combustion of different types of woods.

This science fair project idea investigates how magnetism can defy the force of gravity.

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Glass is see-through, but usually you can still see that it is there. In this experiment, we use baby oil to make glass go completely invisible.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Find out which type of sponge holds the most water.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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