Showing Results for two digit using place value : Page 43

This science experiment explores why leaves change color in the fall and the role of photosynthesis in leaf coloration.

Study the physical and chemical changes that make hair curl or straighten. Study ingredients, function of chemicals like thioglycolic acid.

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.

Make all-natural dye from vegetables to create gorgeous homemade play-silks!

Here is a quick experiment you can conduct at the playground to introduce or reinforce the concept of Newton's First Law, The Law of Inertia.

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

This experiment investigates whether the psychological phenomenon of the halo effect can be used to explain people's perceptions of others.

Many substances are compounds of different elements. This experiment combines iodine and zinc to make zinc iodide.

This experiment evaluates whether a personâs dominant hand is more sensitive than their non-dominant hand.

This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Is horse manure a possible energy source in a crisis? Use calorimetry to find out how much energy horse manure can produce in this science fair project.

This science fair project idea explores the different properties & interactions of sugar molecules.

This cool physics demo illustrates the simple harmonic motion of a pendulum while teaching kids the important concepts of potential and kinetic energy.

Show your child that the simplest ingredients (salt and water) can be used to illustrate the concept of density!

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

It's the day before the test, and you still have a ton to memorize! Sound familiar? Test memorizing techniques to help yourself out next time.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

This experiment explores how listening in to a one-sided conversation affects concentration.

This project examines whether and what associations exist between numbers and letters and colors.

Recycling may be a confusing concept for your little one, so take the time to teach them the magic of compost - right in your own backyard!

Determine which material produces the strongest static charge.

Help your kindergartener identify and sort eight different kinds of common seeds on this "seed wheel" plate you can use all growing season.

Science fair project idea helps conceptualize probability. Compare probabilities and outcomes of cards drawn from a standard playing deck.

This science fair project examines how carnivorous plants digest insects, and whether the plant can use nitrogen in the soil to compensate for lack of insects.