Subjects

Math

English Language Arts

Science

Social Studies

Foreign Language

Grades

Pre-K

Kindergarten

1st Grade

2nd Grade

3rd Grade

4th Grade

5th Grade

6th Grade

7th Grade

8th Grade

Worksheets

Games

Build a Worksheet

Word Scramble

Word Search

Crossword Puzzle

Sudoku Generator

Addition Worksheet Generator 

Subtraction Worksheet Generator

Multiplication Worksheet Generator

Division Worksheet Generator

See All

More Resources

Arts & Crafts

Hands-On Activities

CVC Words

Guided Lessons

Common Core State Standards

Common Core Math

Common Core ELA

Roly Recommends

Weekly Recommendations

Early Childhood

Social Emotional Learning

Winter

Martin Luther King Jr. Day

Lunar New Year

Showing Results for simple machines

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old &ldquo;why&rdquo; questions. As you walk with your child, you can encourage them to ask questions.

Inspire Simple STEAM Exploration

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Make a Pulley

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Balancing Rocks: A Wobbly Game

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

What is a Wedge?

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Heat Transfer Experiment

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

Watching Birds at a Sit Spot

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

Heating Sugar

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Design Challenge: Making a Catapult

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Make Your Own Ant Farm

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

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

The Single Fixed Pulley System

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

Leaf Rubbings: Shapes and Patterns

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

How A Kazoo Makes Sounds

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Gravitational Forces for Preschoolers

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

Density Experiment

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Halloween Potions

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

Does Time Really Pass By Faster When You're Having Fun?

How do organic materials become soil? This science experiment measures what materials biodegrade.

Dig This: Biodegradation

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Easy Rhyming Words

Help kids tap into their inner inventor by teaching them how to make peanut butter through trial, error, and lots of taste testing!

How to Make Peanut Butter

This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.

Plants Need Sunlight and Water 

This activity challenges students to use computational thinking as they create a sequence of commands that will make a robot navigate around several obstacles.

Robot Obstacle Course

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

What Do Worms Eat? A Compost Project

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

Measuring Magnification

Plants and light seem to be good buddies, but how far does the friendship really go?

Growing in the Dark: Plants and Light

By incorporating natural materials and the powers of observation, your child will become a backyard naturalist while building early writing and drawing skills!

Jane Goodall and Nature Journaling

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Geography, Latitude, and the North Star: Where Am I?

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?

Is it a square or a circle? See if you can trick your friends with this zany science project!

Shape Words

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

Geology 101

Lesson Plans

Interactive Worksheets

Workbooks

Activities

Exercises

Stories

Songs

Offline Games

Teacher Resources

Teacher Editions

Resource Type

First Grade

Second Grade

Third Grade

Fourth Grade

Fifth Grade

Sixth Grade

Seventh Grade

Eighth Grade

Grade Level

1st and 2nd Grade

Birthdays

Women's History Month

St. Patrick's Day

Ramadan

Passover

Spring

Easter

Earth Day

Cinco de Mayo

Mother's Day

Memorial Day

Asian Pacific American Heritage Month

Graduation

Summer

Summer Packets

Father's Day

Independence Day

Back to School

Labor Day

Fall

Hispanic Heritage Month

Halloween

Dia de los Muertos

Veterans Day

Holidays

Thanksgiving

Christmas

Hanukkah

Kwanzaa

New Year

Valentine's Day

Presidents' Day

Black History Month

Occasion

Common Core

Mazes

Dot to Dot

Ball Games

Crossword

Fitness & Exercise

Group Games

Memory Games

Outdoor Games

Printable Board Games

Puzzles & Sudoku

Scavenger Hunt

Travel Games

Word Puzzles

Game Type

Fabric Projects

Beads & Jewelry

Paper & Glue Crafts

Construction & Sculpture

Painting & Drawing

Recycled Crafts

Coloring

Snacks

Mains

Sides

Dessert

Recipes

English Language Support