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4th Grade Life Science Learning Resources

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Fourth Grade

Life Science

Life Science Crossword: Plant and Animal Cells

Kids learn important plant and animal cell vocabulary as they plug the words into their correct spots and complete the puzzle.

Why Do Apples Turn Brown?

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Reaction Time: The Ruler Drop Test

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Food Chain Pyramid

Get familiar with this food chain pyramid, from carnivores and herbivores to producers and decomposers; each group has a role.

Best Fertilizer: The Effects of Fertilizer on Plant Growth

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Plant Vocabulary

Does your budding biologist know his plant parts? Get a great review of some important plant vocabulary with this info page.

Which Food Will Mold the Fastest?

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Taste Areas of the Tongue

Are there really specific taste areas of the tongue for sweet, salty, bitter, sour, and umami? Find out for yourself in this cool science project.

Does The Color of Light Affect Plant Growth?

This science fair project idea determines if the color of light affects the growth of plants.

Do Plants Need Water?

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

Greenhouse Effect Diagram

Global warming is a serious issue in our world today. Help your child understand how it works with this greenhouse effect coloring worksheet.

Can Dog Drool Kill Germs?

This science experiment tests if dog saliva can really help heal wounds.

Anatomy of a Flower

Roses are red, violets are blue, I know the parts of a flower, how about you? Learn all the parts of a flower with this colorful worksheet.

Gender Probability: Male and Female Chromosomes

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

How to Prevent Erosion

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Blindfolded Taste Test

This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.

Positive and Negative Geotropism

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Is It Safe To Eat Something Dropped On The Floor As Long As You Pick It Up Within 5-Seconds?

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

Potato Chip Science: How Greasy Are Your Potato Chips?

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

Do Plants Experience Pollution? Will Plants Grow More or Less or be Unaffected when Grown in Polluted Soil?

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Bottle Terrarium

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Animal Tracks Guide

Next time you head outside for a hike or a camping trip, little adventurers can bring along this checklist of animal tracks to log what they find!

Measure Your Pulse with a Straw!

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

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