Showing Results for three digit and two step word problems : Page 7

Learn how acid-base catalysis affects enzymes and enzymatic reactions in this science project.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This science fair project idea produces sounds by creating vibrations using different objects.

This science fair project determines what effect substances have on ice, and which of these products most effectively melts ice.

Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.

This science fair project studies whether DSLR and Point-and-Shoot cameras work the same way under all conditions.

This project determines how much the rebound rates of tennis balls change after ten games.

This experiment evaluates if the lighting in a room affects the speed at which test subjects perform mental tasks.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

The goal of this project is to create an exciting topographical map out of dough.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Science fair project that tests whether cats have a preference for organic food.

The objective of this science project is to determine the length of time for different seeds to germinate.

Check out this fun science fair project idea to explore fun facts about fruit juices and learn why do juices turn bad in the fridge.

Polymers remove oil from contaminated waters. The purpose of this science project is to test the effectiveness of a polymer in cleaning up an oil spill.

Determine the efficiency of multi-tasking by comparing how long it takes students to complete different tasks. Collate data, complete Summary Chart.

Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...

The purpose of this science project is to determine which chemical best lowers the temperature of water in a cold pack and if the amount affects its use.

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

Determine if left-handed people have faster response times.

Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Can you stain teeth with tea, coffee, or coke? Explore how in this science fair project idea.

Is there more air particulate matter in an urban or rural environment? Test your knowledge with this science fair project.

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

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

In this science fair experiment, kids will use the acid test to discover how to tell one mineral from another.

In this science fair project, students determine whether a bean plant grows faster and taller using a traditional soil planting method or hydroponic method.