SKIP TO CONTENT
All SubjectsScienceEngineering and Science Inquiry
Subtopics:

Showing Results for three digit : Page 4

216 results
Search for: three, digit
✕
Science
✕
3rd and 4th Grade
✕
Clear All
Sort by:
216 results
Sort by:
Changing the Pitch of Sound
Changing the Pitch of Sound
Activity
Changing the Pitch of Sound large image
Changing the Pitch of Sound
Fourth Grade
Physical Science
This science fair project idea produces varying pitches of sound.
Activity
Changing the Pitch of Sound
Changing the Pitch of Sound
Activity
Changing the Pitch of Sound
This science fair project idea produces varying pitches of sound.
Fourth Grade
Physical Science
Activity
Wacky Windmill Challenge
Wacky Windmill Challenge
Lesson Plan
Wacky Windmill Challenge large image
Wacky Windmill Challenge
Fourth Grade
Engineering and Science Inquiry
Windmills have been around for generations to grind food and create energy. During this challenge, students will use various materials and put their engineering skills to work by creating their own windmills.
Lesson Plan
Wacky Windmill Challenge
Wacky Windmill Challenge
Lesson Plan
Wacky Windmill Challenge
Windmills have been around for generations to grind food and create energy. During this challenge, students will use various materials and put their engineering skills to work by creating their own windmills.
Fourth Grade
Engineering and Science Inquiry
Lesson Plan
Crayon Rock Cycle Experiment
Crayon Rock Cycle Experiment
Activity
Crayon Rock Cycle Experiment large image
Crayon Rock Cycle Experiment
Third Grade
Engineering and Science Inquiry
Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?
Activity
Crayon Rock Cycle Experiment
Crayon Rock Cycle Experiment
Activity
Crayon Rock Cycle Experiment
Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?
Third Grade
Engineering and Science Inquiry
Activity
Why Does Honey Crystallize?
Why Does Honey Crystallize?
Activity
Why Does Honey Crystallize? large image
Why Does Honey Crystallize?
Third Grade
Measurement
Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.
Activity
Why Does Honey Crystallize?
Why Does Honey Crystallize?
Activity
Why Does Honey Crystallize?
Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.
Third Grade
Measurement
Activity
How Do Icicles Form?
Activity
How Do Icicles Form?
Third Grade
Measurement
How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.
Activity
How Do Icicles Form?
Activity
How Do Icicles Form?
How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.
Third Grade
Measurement
Activity
Feeding Plants
Feeding Plants
Activity
Feeding Plants large image
Feeding Plants
Kindergarten
Engineering and Science Inquiry
This project explores whether plants can live and grow when "watered" with juice, soda, or milk.
Activity
Feeding Plants
Feeding Plants
Activity
Feeding Plants
This project explores whether plants can live and grow when "watered" with juice, soda, or milk.
Kindergarten
Engineering and Science Inquiry
Activity
All About Air Pressure
All About Air Pressure
Activity
All About Air Pressure large image
All About Air Pressure
Third Grade
Engineering and Science Inquiry
The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.
Activity
All About Air Pressure
All About Air Pressure
Activity
All About Air Pressure
The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.
Third Grade
Engineering and Science Inquiry
Activity
Using Mirrors in the Garden: Measuring Light Reflection
Using Mirrors in the Garden: Measuring Light Reflection
Activity
Using Mirrors in the Garden: Measuring Light Reflection large image
Using Mirrors in the Garden: Measuring Light Reflection
Fourth Grade
Engineering and Science Inquiry
Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!
Activity
Using Mirrors in the Garden: Measuring Light Reflection
Using Mirrors in the Garden: Measuring Light Reflection
Activity
Using Mirrors in the Garden: Measuring Light Reflection
Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!
Fourth Grade
Engineering and Science Inquiry
Activity
Fastest Way to Cool a Soda
Fastest Way to Cool a Soda
Activity
Fastest Way to Cool a Soda large image
Fastest Way to Cool a Soda
Fourth Grade
Engineering and Science Inquiry
In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.
Activity
Fastest Way to Cool a Soda
Fastest Way to Cool a Soda
Activity
Fastest Way to Cool a Soda
In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.
Fourth Grade
Engineering and Science Inquiry
Activity
The Mohs Test: How to Compare the Hardness of Minerals
The Mohs Test: How to Compare the Hardness of Minerals
Activity
The Mohs Test: How to Compare the Hardness of Minerals large image
The Mohs Test: How to Compare the Hardness of Minerals
Third Grade
Engineering and Science Inquiry
This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.
Activity
The Mohs Test: How to Compare the Hardness of Minerals
The Mohs Test: How to Compare the Hardness of Minerals
Activity
The Mohs Test: How to Compare the Hardness of Minerals
This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.
Third Grade
Engineering and Science Inquiry
Activity
DIY Electromagnet
DIY Electromagnet
Activity
DIY Electromagnet large image
DIY Electromagnet
Fourth Grade
Engineering and Science Inquiry
Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.
Activity
DIY Electromagnet
DIY Electromagnet
Activity
DIY Electromagnet
Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.
Fourth Grade
Engineering and Science Inquiry
Activity
Form and Function
Form and Function
Activity
Form and Function large image
Form and Function
First Grade
Engineering and Science Inquiry
Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.
Activity
Form and Function
Form and Function
Activity
Form and Function
Science fair project idea that examines different physical characteristics of a chosen animal. Make educated guesses about evolution based on animal's form.
First Grade
Engineering and Science Inquiry
Activity
Eye Witness, You Witness
Eye Witness, You Witness
Activity
Eye Witness, You Witness large image
Eye Witness, You Witness
Fourth Grade
Engineering and Science Inquiry
How well can people recall what they have observed. Test your knowledge in this fun experiment.
Activity
Eye Witness, You Witness
Eye Witness, You Witness
Activity
Eye Witness, You Witness
How well can people recall what they have observed. Test your knowledge in this fun experiment.
Fourth Grade
Engineering and Science Inquiry
Activity
Bee Watcher: What's Buzzing?
Bee Watcher: What's Buzzing?
Activity
Bee Watcher: What's Buzzing? large image
Bee Watcher: What's Buzzing?
Third Grade
Engineering and Science Inquiry
Enter the buzz worthy world of bee watching and find out what time bees like to wake up!
Activity
Bee Watcher: What's Buzzing?
Bee Watcher: What's Buzzing?
Activity
Bee Watcher: What's Buzzing?
Enter the buzz worthy world of bee watching and find out what time bees like to wake up!
Third Grade
Engineering and Science Inquiry
Activity
Crystal Wonderland
Crystal Wonderland
Activity
Crystal Wonderland large image
Crystal Wonderland
First Grade
Measurement
The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.
Activity
Crystal Wonderland
Crystal Wonderland
Activity
Crystal Wonderland
The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.
First Grade
Measurement
Activity
How to use Colored Filters to Send Secret Messages
How to use Colored Filters to Send Secret Messages
Activity
How to use Colored Filters to Send Secret Messages large image
How to use Colored Filters to Send Secret Messages
Third Grade
Engineering and Science Inquiry
Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.
Activity
How to use Colored Filters to Send Secret Messages
How to use Colored Filters to Send Secret Messages
Activity
How to use Colored Filters to Send Secret Messages
Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.
Third Grade
Engineering and Science Inquiry
Activity
Does a Dark Fridge Prevent Food from Spoiling?
Does a Dark Fridge Prevent Food from Spoiling?
Activity
Does a Dark Fridge Prevent Food from Spoiling? large image
Does a Dark Fridge Prevent Food from Spoiling?
Third Grade
Engineering and Science Inquiry
Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.
Activity
Does a Dark Fridge Prevent Food from Spoiling?
Does a Dark Fridge Prevent Food from Spoiling?
Activity
Does a Dark Fridge Prevent Food from Spoiling?
Ever wonder why refrigerator lights turn off when you close the door? Does the darkness prevent food from spoiling? This experiment, determines just that.
Third Grade
Engineering and Science Inquiry
Activity
Growing Bacteria
Growing Bacteria
Activity
Growing Bacteria large image
Growing Bacteria
Fourth Grade
Engineering and Science Inquiry
Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.
Activity
Growing Bacteria
Growing Bacteria
Activity
Growing Bacteria
Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.
Fourth Grade
Engineering and Science Inquiry
Activity
The Rings of Saturn: A Scale Model
The Rings of Saturn: A Scale Model
Activity
The Rings of Saturn: A Scale Model large image
The Rings of Saturn: A Scale Model
Third Grade
Alphabet
Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!
Activity
The Rings of Saturn: A Scale Model
The Rings of Saturn: A Scale Model
Activity
The Rings of Saturn: A Scale Model
Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!
Third Grade
Alphabet
Activity
Latent Fingerprints
Activity
Latent Fingerprints
First Grade
Engineering and Science Inquiry
Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.
Activity
Latent Fingerprints
Activity
Latent Fingerprints
Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.
First Grade
Engineering and Science Inquiry
Activity
Echoes: How Sound Waves are Reflected and Absorbed
Echoes: How Sound Waves are Reflected and Absorbed
Activity
Echoes: How Sound Waves are Reflected and Absorbed large image
Echoes: How Sound Waves are Reflected and Absorbed
Fourth Grade
Engineering and Science Inquiry
Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.
Activity
Echoes: How Sound Waves are Reflected and Absorbed
Echoes: How Sound Waves are Reflected and Absorbed
Activity
Echoes: How Sound Waves are Reflected and Absorbed
Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.
Fourth Grade
Engineering and Science Inquiry
Activity
Does Skin Thickness Decrease Fruit Spoilage Rate?
Does Skin Thickness Decrease Fruit Spoilage Rate?
Activity
Does Skin Thickness Decrease Fruit Spoilage Rate? large image
Does Skin Thickness Decrease Fruit Spoilage Rate?
Fourth Grade
Engineering and Science Inquiry
Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!
Activity
Does Skin Thickness Decrease Fruit Spoilage Rate?
Does Skin Thickness Decrease Fruit Spoilage Rate?
Activity
Does Skin Thickness Decrease Fruit Spoilage Rate?
Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!
Fourth Grade
Engineering and Science Inquiry
Activity
Making A Rock In A Cup
Making A Rock In A Cup
Activity
Making A Rock In A Cup large image
Making A Rock In A Cup
Fourth Grade
Engineering and Science Inquiry
This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.
Activity
Making A Rock In A Cup
Making A Rock In A Cup
Activity
Making A Rock In A Cup
This science fair project idea creates a sedimentary rock and to investigate what takes place during the rock cycle.
Fourth Grade
Engineering and Science Inquiry
Activity
What is Topography?
What is Topography?
Activity
What is Topography? large image
What is Topography?
Third Grade
Engineering and Science Inquiry
What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.
Activity
What is Topography?
What is Topography?
Activity
What is Topography?
What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.
Third Grade
Engineering and Science Inquiry
Activity
How to Demagnetize a Magnet
Activity
How to Demagnetize a Magnet
Fourth Grade
Engineering and Science Inquiry
Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.
Activity
How to Demagnetize a Magnet
Activity
How to Demagnetize a Magnet
Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.
Fourth Grade
Engineering and Science Inquiry
Activity
Measuring Raindrops
Measuring Raindrops
Activity
Measuring Raindrops large image
Measuring Raindrops
Fourth Grade
Engineering and Science Inquiry
What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.
Activity
Measuring Raindrops
Measuring Raindrops
Activity
Measuring Raindrops
What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.
Fourth Grade
Engineering and Science Inquiry
Activity
Rate of Evaporation
Rate of Evaporation
Activity
Rate of Evaporation large image
Rate of Evaporation
Second Grade
Engineering and Science Inquiry
The goal of this evaporation experiment is to learn about how different external conditions affect drying time.
Activity
Rate of Evaporation
Rate of Evaporation
Activity
Rate of Evaporation
The goal of this evaporation experiment is to learn about how different external conditions affect drying time.
Second Grade
Engineering and Science Inquiry
Activity
Attracting Beneficial Insects to Your Garden
Attracting Beneficial Insects to Your Garden
Activity
Attracting Beneficial Insects to Your Garden large image
Attracting Beneficial Insects to Your Garden
Fourth Grade
Engineering and Science Inquiry
Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!
Activity
Attracting Beneficial Insects to Your Garden
Attracting Beneficial Insects to Your Garden
Activity
Attracting Beneficial Insects to Your Garden
Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!
Fourth Grade
Engineering and Science Inquiry
Activity
Paper Towel Science Project: Capillarity
Paper Towel Science Project: Capillarity
Activity
Paper Towel Science Project: Capillarity large image
Paper Towel Science Project: Capillarity
Third Grade
Engineering and Science Inquiry
This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.
Activity
Paper Towel Science Project: Capillarity
Paper Towel Science Project: Capillarity
Activity
Paper Towel Science Project: Capillarity
This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.
Third Grade
Engineering and Science Inquiry
Activity
Gender Probability: Male and Female Chromosomes
Gender Probability: Male and Female Chromosomes
Activity
Gender Probability: Male and Female Chromosomes large image
Gender Probability: Male and Female Chromosomes
Fourth Grade
Engineering and Science Inquiry
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.
Activity
Gender Probability: Male and Female Chromosomes
Gender Probability: Male and Female Chromosomes
Activity
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.
Fourth Grade
Engineering and Science Inquiry
Activity
12345…8