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3rd Grade Science Resources for 'add and subtract'
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3rd Grade Science Resources for 'add and subtract'
Filters
104 results
Search for: add, and, subtract
✕
Science
✕
3rd Grade
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Clear all
104 results
Does Adding Salt to Pasta make it Cook Faster?
Activity
Does Adding Salt to Pasta make it Cook Faster?
Third Grade
Engineering and Science Inquiry
Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.
Activity
Does Adding Salt to Pasta make it Cook Faster?
Activity
Does Adding Salt to Pasta make it Cook Faster?
Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.
Third Grade
Engineering and Science Inquiry
Activity
Low Fat, Low Taste?
Activity
Low Fat, Low Taste?
Second Grade
Engineering and Science Inquiry
This science fair project idea investigates if fats add to the flavor of food.
Activity
Low Fat, Low Taste?
Activity
Low Fat, Low Taste?
This science fair project idea investigates if fats add to the flavor of food.
Second Grade
Engineering and Science Inquiry
Activity
Why is There a Leap Year?
Worksheet
Why is There a Leap Year?
Second Grade
Physical Science
Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.
Worksheet
Why is There a Leap Year?
Worksheet
Why is There a Leap Year?
Every four years something funny happens with our calendars -- we add a day! Why do we do this? Discover the science behind leap year.
Second Grade
Physical Science
Worksheet
Factors Affecting Solubility
Activity
Factors Affecting Solubility
Third Grade
Engineering and Science Inquiry
Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.
Activity
Factors Affecting Solubility
Activity
Factors Affecting Solubility
Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.
Third Grade
Engineering and Science Inquiry
Activity
How to use Colored Filters to Send Secret Messages
Activity
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
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
The Science of Sound
Activity
The Science of Sound
Third Grade
Physical Science
What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.
Activity
The Science of Sound
Activity
The Science of Sound
What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.
Third Grade
Physical Science
Activity
Does Gelatin Slow Down the Melting of Freezer Pops?
Activity
Does Gelatin Slow Down the Melting of Freezer Pops?
Third Grade
Engineering and Science Inquiry
This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.
Activity
Does Gelatin Slow Down the Melting of Freezer Pops?
Activity
Does Gelatin Slow Down the Melting of Freezer Pops?
This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.
Third Grade
Engineering and Science Inquiry
Activity
Light and Color
Workbook
Light and Color
Third Grade
Reading
Did you know that light can bend? Help your curious kids learn the important physical properties of light and explore how light adds colors to our world, with this beautiful series on light and color.
Workbook
Light and Color
Workbook
Light and Color
Did you know that light can bend? Help your curious kids learn the important physical properties of light and explore how light adds colors to our world, with this beautiful series on light and color.
Third Grade
Reading
Workbook
Water and Mosses
Activity
Water and Mosses
Second Grade
Engineering and Science Inquiry
This science fair project will help students learn about non-vascular plants, such as mosses.
Activity
Water and Mosses
Activity
Water and Mosses
This science fair project will help students learn about non-vascular plants, such as mosses.
Second Grade
Engineering and Science Inquiry
Activity
Make Your Own Glass Cleaner
Activity
Make Your Own Glass Cleaner
Third Grade
Physical Science
Making your own glass cleaner is easy, effective and inexpensive!
Activity
Make Your Own Glass Cleaner
Activity
Make Your Own Glass Cleaner
Making your own glass cleaner is easy, effective and inexpensive!
Third Grade
Physical Science
Activity
How to Make a Bouncy Ball
Activity
How to Make a Bouncy Ball
Third Grade
Physical Science
In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.
Activity
How to Make a Bouncy Ball
Activity
How to Make a Bouncy Ball
In this activity, you'll not only make your own bouncy balls at home, but your child will also learn how polymers are made.
Third Grade
Physical Science
Activity
Hydrogen Peroxide and Yeast
Activity
Hydrogen Peroxide and Yeast
Third Grade
Engineering and Science Inquiry
Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.
Activity
Hydrogen Peroxide and Yeast
Activity
Hydrogen Peroxide and Yeast
Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.
Third Grade
Engineering and Science Inquiry
Activity
Rust Chemistry: How Does Rust Form?
Activity
Rust Chemistry: How Does Rust Form?
Third Grade
Physical Science
How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.
Activity
Rust Chemistry: How Does Rust Form?
Activity
Rust Chemistry: How Does Rust Form?
How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.
Third Grade
Physical Science
Activity
Water Salinity
Activity
Water Salinity
Third Grade
Engineering and Science Inquiry
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Activity
Water Salinity
Activity
Water Salinity
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Third Grade
Engineering and Science Inquiry
Activity
Hymenoptera Coloring Page
Worksheet
Hymenoptera Coloring Page
Third Grade
Life Science
Sting your little insect enthusiast with some knowledge about the insect order Hymenoptera. He'll learn a fun fact as he colors this yellowjacket.
Worksheet
Hymenoptera Coloring Page
Worksheet
Hymenoptera Coloring Page
Sting your little insect enthusiast with some knowledge about the insect order Hymenoptera. He'll learn a fun fact as he colors this yellowjacket.
Third Grade
Life Science
Worksheet
Warm, Warmer: How Does Exercise Change Body Temperature?
Activity
Warm, Warmer: How Does Exercise Change Body Temperature?
Second Grade
Measurement
In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.
Activity
Warm, Warmer: How Does Exercise Change Body Temperature?
Activity
Warm, Warmer: How Does Exercise Change Body Temperature?
In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.
Second Grade
Measurement
Activity
Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
Activity
Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
Second Grade
Engineering and Science Inquiry
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.
Activity
Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
Activity
Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
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.
Second Grade
Engineering and Science Inquiry
Activity
Scent Science and Cinnamon Rolls
Activity
Scent Science and Cinnamon Rolls
Third Grade
Life Science
Explore aromas with your child and help boost her brain power with some fun and interactive science activities.
Activity
Scent Science and Cinnamon Rolls
Activity
Scent Science and Cinnamon Rolls
Explore aromas with your child and help boost her brain power with some fun and interactive science activities.
Third Grade
Life Science
Activity
Solar System: Jupiter
Worksheet
Solar System: Jupiter
Third Grade
Earth and Space Science
How well does your child know the layout of our Solar System? This worksheet focuses on the biggest planet, Jupiter.
Worksheet
Solar System: Jupiter
Worksheet
Solar System: Jupiter
How well does your child know the layout of our Solar System? This worksheet focuses on the biggest planet, Jupiter.
Third Grade
Earth and Space Science
Worksheet
Rain Forest Food Web
Worksheet
Rain Forest Food Web
Third Grade
Reading
Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.
Worksheet
Rain Forest Food Web
Worksheet
Rain Forest Food Web
Children learn about the food cycle in a rain forest as they color in a scene of snakes, butterflies, leopards, and other forest-dwelling creatures.
Third Grade
Reading
Worksheet
Solar System: Saturn
Worksheet
Solar System: Saturn
Third Grade
Earth and Space Science
This worksheet teaches all about the planet Saturn and its placement in the Solar System.
Worksheet
Solar System: Saturn
Worksheet
Solar System: Saturn
This worksheet teaches all about the planet Saturn and its placement in the Solar System.
Third Grade
Earth and Space Science
Worksheet
Corn Maze STEM Challenge
Activity
Corn Maze STEM Challenge
Pre-K
Engineering and Science Inquiry
Learn all about balance and motion as your child designs a corn maze!
Activity
Corn Maze STEM Challenge
Activity
Corn Maze STEM Challenge
Learn all about balance and motion as your child designs a corn maze!
Pre-K
Engineering and Science Inquiry
Activity
Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold?
Activity
Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold?
Third Grade
Engineering and Science Inquiry
Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.
Activity
Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold?
Activity
Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold?
Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.
Third Grade
Engineering and Science Inquiry
Activity
Make Your Own Fizzy Lemonade
Activity
Make Your Own Fizzy Lemonade
Third Grade
Engineering and Science Inquiry
This science fair experiment idea's objective is to understand the general concept of an acid and a base.
Activity
Make Your Own Fizzy Lemonade
Activity
Make Your Own Fizzy Lemonade
This science fair experiment idea's objective is to understand the general concept of an acid and a base.
Third Grade
Engineering and Science Inquiry
Activity
Frogs In Winter
Activity
Frogs In Winter
Third Grade
Life Science
Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.
Activity
Frogs In Winter
Activity
Frogs In Winter
Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.
Third Grade
Life Science
Activity
Make Homemade Glue!
Activity
Make Homemade Glue!
Third Grade
Physical Science
This surprisingly good glue recipe comes from common kitchen items.
Activity
Make Homemade Glue!
Activity
Make Homemade Glue!
This surprisingly good glue recipe comes from common kitchen items.
Third Grade
Physical Science
Activity
Solar System: Neptune
Worksheet
Solar System: Neptune
Third Grade
Earth and Space Science
Teach your child about the layout of the Solar System with this simple worksheet, featuring the planet Neptune.
Worksheet
Solar System: Neptune
Worksheet
Solar System: Neptune
Teach your child about the layout of the Solar System with this simple worksheet, featuring the planet Neptune.
Third Grade
Earth and Space Science
Worksheet
Test the Power of Baking Powder
Activity
Test the Power of Baking Powder
Third Grade
Physical Science
Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!
Activity
Test the Power of Baking Powder
Activity
Test the Power of Baking Powder
Show your kids the power of baking powder by conducting a simple experiment. Make four batches of cornbread, all identical except for one thing: baking powder!
Third Grade
Physical Science
Activity
Make a Fistful of Slime!
Activity
Make a Fistful of Slime!
First Grade
Physical Science
Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.
Activity
Make a Fistful of Slime!
Activity
Make a Fistful of Slime!
Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.
First Grade
Physical Science
Activity
Make Your Own Soap
Activity
Make Your Own Soap
Third Grade
Physical Science
Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.
Activity
Make Your Own Soap
Activity
Make Your Own Soap
Encourage your child to think outside the bathtub by making her very own handmade soaps! Perfect as a present, a decoration, or just to pamper herself.
Third Grade
Physical Science
Activity
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