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2nd Grade Engineering and Science Inquiry Activities : Page 4

Discover whether cold or hot water from the faucet will boil faster on the stove.

Does Hot Water Boil Faster Than Cold?

Get down to the rubber with this science project that tests the effectiveness of different types of erasers.

Eraser Test

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

Does Ultraviolet (UV) Light Pass through Some Colors More than Others?

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Meteorologist for a Day

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Does Storing Cucumbers and Tomatoes in the Fridge Spoil Its Unique Flavors?

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Sinking Objects

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Can You Keep a Secret?

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

The Role of Fat in Food

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

Ew... Brown Guacamole!

Test your friends to find out if you can replicate the placebo effect's incredible results.

The Placebo Effect

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Snow to Liquid Ratio

In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.

Ripening Avocados

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.

Do Some Liquids Expand More than Others When Frozen?

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

Get Cracking

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Halloween STEM Building Challenge

This science experiment has students test whether a snail moves faster on concrete or dirt.

Speedy Snail Race

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Geology 101

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

What is a Wedge?

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Bubble Colors

This science fair project teaches students the differences between fruits and vegetables.

Is it a Fruit or a Veggie?

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

What Animals are Most Popular? A Data Analysis Project

How do animals keep warm? In this experiment, find out whether fat insulation resists cold temperatures and learn how this works in the animal kingdom.

Fat Insulation: How Do Animals Keep Warm?

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

Cleansing Power: How Does Dishwashing Liquid Work?

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

Turtle Habitat

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Creatures That Bug Us

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

Can Crystals Show Color Mixing?

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks. 

Building Brick Challenge: Build a Boat

This science fair project will help students learn about non-vascular plants, such as mosses.

Water and Mosses

Can a horse lead itself to the carrot?  Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

Horse Memory

This science fair project idea  investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

Measuring Magnification

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