4th and 5th Grade Engineering and Science Inquiry Activities : Page 12

This science fair project idea explores how enzyme inhibitors, active sites, non-competitive enzyme inhibitors, and substrates work.

Total alkalinity and pH personal care products are controlled to prevent skin irritation. Learn more about basic and acidic substances in this science project.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?

Ant behavior is closely related to light intensity. This free science fair project idea examines how fast ants dig when they are exposed to to light and dark.

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

This project examines whether playing music during class helps students learn or if it distracts students from learning.

Science fair project in which you will learn more about the natural world by preserving and identifying different animal tracks.

Find out which kind of bubble wrap fares best when put in impact.

This project explores whether nails, toothpicks, straws, or pen nibs are best for applying ink to paper.

Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

Wonder why bugs always fly around your lights at night? This experiment determines whether insects are attracted to the heat or the light.

Science fair project that uses muriatic acid to develop fingerprints that would otherwise be invisible.

Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

What is the hydrologic cycle and how does it work? Check out this fun and easy science project where you will model and learn about Earth's water cycle!

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

This experiment examines whether storing your orange juice at different temperatures affects its acidity.