SKIP TO CONTENT
Worksheet Generator
Subjects
Grades
Worksheets
Games
Build a Worksheet
More Resources
Roly Recommends
Subjects
Grades
Worksheets
Games
Build a Worksheet
More Resources
Roly Recommends
All Subjects
Science
Engineering and Science Inquiry
Subtopics:
Engineering Design
Science Projects
✕
The Scientific Method
Lab Safety and Equipment
Observations and Data Collection
Show Less
Filters
Search for: two, digit, addition, using
✕
Science
✕
Elementary School
✕
Subjects
Math
English Language Arts
Science
Social Studies
Foreign Language
Grade Level
Pre-K
K
1st
2nd
3rd
4th
5th
6th
7th
8th
Early Childhood
Elementary School
Middle School
Resource Type
Activities
Occasion
Earth Day
Holidays
See More
Clear All
View 525 results
Showing Results for two digit addition using : Page 6
525 results
Search for: two, digit, addition, using
✕
Science
✕
Elementary School
✕
Clear All
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
All filters
525 results
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
Is it Possible to Blow a Square Bubble?
Activity
Is it Possible to Blow a Square Bubble?
Second Grade
Engineering and Science Inquiry
Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?
Activity
Is it Possible to Blow a Square Bubble?
Activity
Is it Possible to Blow a Square Bubble?
Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?
Second Grade
Engineering and Science Inquiry
Activity
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
Activity
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
Fourth Grade
Engineering and Science Inquiry
This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.
Activity
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
Activity
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.
Fourth Grade
Engineering and Science Inquiry
Activity
Making Fake Snot!
Activity
Making Fake Snot!
Fourth Grade
Engineering and Science Inquiry
Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.
Activity
Making Fake Snot!
Activity
Making Fake Snot!
Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.
Fourth Grade
Engineering and Science Inquiry
Activity
Compost Ingredients
Activity
Compost Ingredients
Fourth Grade
Engineering and Science Inquiry
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
Activity
Compost Ingredients
Activity
Compost Ingredients
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
Fourth Grade
Engineering and Science Inquiry
Activity
Strong Bridges
Activity
Strong Bridges
Fifth Grade
Engineering and Science Inquiry
This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.
Activity
Strong Bridges
Activity
Strong Bridges
This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.
Fifth Grade
Engineering and Science Inquiry
Activity
Practicing the Scientific Method with Puffy Paint
Activity
Practicing the Scientific Method with Puffy Paint
Kindergarten
Engineering and Science Inquiry
In this project children practice the scientific method while playing with puffy paint.
Activity
Practicing the Scientific Method with Puffy Paint
Activity
Practicing the Scientific Method with Puffy Paint
In this project children practice the scientific method while playing with puffy paint.
Kindergarten
Engineering and Science Inquiry
Activity
Yeast Growth
Activity
Yeast Growth
Fifth Grade
Engineering and Science Inquiry
This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.
Activity
Yeast Growth
Activity
Yeast Growth
This science fair project idea measures the growth of bread dough and finds out how long it takes for the dough to stop rising.
Fifth Grade
Engineering and Science Inquiry
Activity
Can't Do a Thing with Your Hair? Think Again!
Activity
Can't Do a Thing with Your Hair? Think Again!
Fifth Grade
Engineering and Science Inquiry
What can you do with hair after its cut? This science project teaches you practical uses for human hair.
Activity
Can't Do a Thing with Your Hair? Think Again!
Activity
Can't Do a Thing with Your Hair? Think Again!
What can you do with hair after its cut? This science project teaches you practical uses for human hair.
Fifth Grade
Engineering and Science Inquiry
Activity
Cats & Dogs
Activity
Cats & Dogs
Third Grade
Engineering and Science Inquiry
Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.
Activity
Cats & Dogs
Activity
Cats & Dogs
Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.
Third Grade
Engineering and Science Inquiry
Activity
Polymer Crystals vs. Ice
Activity
Polymer Crystals vs. Ice
Third Grade
Measurement
What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!
Activity
Polymer Crystals vs. Ice
Activity
Polymer Crystals vs. Ice
What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!
Third Grade
Measurement
Activity
Ew... Brown Guacamole!
Activity
Ew... Brown Guacamole!
Kindergarten
Engineering and Science Inquiry
This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.
Activity
Ew... Brown Guacamole!
Activity
Ew... Brown Guacamole!
This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.
Kindergarten
Engineering and Science Inquiry
Activity
Magnet Science Fair Project: How to Measure the Strength of a Magnet
Activity
Magnet Science Fair Project: How to Measure the Strength of a Magnet
Third Grade
Engineering and Science Inquiry
Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.
Activity
Magnet Science Fair Project: How to Measure the Strength of a Magnet
Activity
Magnet Science Fair Project: How to Measure the Strength of a Magnet
Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.
Third Grade
Engineering and Science Inquiry
Activity
If Starch is Composed of Sugar Why Isn't Starch Sweet?
Activity
If Starch is Composed of Sugar Why Isn't Starch Sweet?
Fifth Grade
Engineering and Science Inquiry
This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.
Activity
If Starch is Composed of Sugar Why Isn't Starch Sweet?
Activity
If Starch is Composed of Sugar Why Isn't Starch Sweet?
This science fair project focuses on the use of the enzyme amylase found in human saliva to break down starch into sugar.
Fifth Grade
Engineering and Science Inquiry
Activity
How to Make A Thermometer
Activity
How to Make A Thermometer
Second Grade
Measurement
Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?
Activity
How to Make A Thermometer
Activity
How to Make A Thermometer
Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?
Second Grade
Measurement
Activity
The Rings of Saturn: A Scale Model
Activity
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
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
What is Plant Transpiration?
Activity
What is Plant Transpiration?
Fifth Grade
Measurement
This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.
Activity
What is Plant Transpiration?
Activity
What is Plant Transpiration?
This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.
Fifth Grade
Measurement
Activity
Capillary Action Experiment
Activity
Capillary Action Experiment
Third Grade
Engineering and Science Inquiry
Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.
Activity
Capillary Action Experiment
Activity
Capillary Action Experiment
Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.
Third Grade
Engineering and Science Inquiry
Activity
Speedy Shoes
Activity
Speedy Shoes
Fifth Grade
Writing
Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.
Activity
Speedy Shoes
Activity
Speedy Shoes
Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.
Fifth Grade
Writing
Activity
Conductor or Insulator?
Activity
Conductor or Insulator?
Third Grade
Engineering and Science Inquiry
This science fair project idea determines what household items are good conductors of electricity.
Activity
Conductor or Insulator?
Activity
Conductor or Insulator?
This science fair project idea determines what household items are good conductors of electricity.
Third Grade
Engineering and Science Inquiry
Activity
Flat Earth? Not Really!
Activity
Flat Earth? Not Really!
Fourth Grade
Engineering and Science Inquiry
Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.
Activity
Flat Earth? Not Really!
Activity
Flat Earth? Not Really!
Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.
Fourth Grade
Engineering and Science Inquiry
Activity
Bubble Colors
Activity
Bubble Colors
Second Grade
Engineering and Science Inquiry
Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!
Activity
Bubble Colors
Activity
Bubble Colors
Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!
Second Grade
Engineering and Science Inquiry
Activity
Which Fabrics Shrink the Most in the Wash? Does Washing or Drying Cause This?
Activity
Which Fabrics Shrink the Most in the Wash? Does Washing or Drying Cause This?
Fifth Grade
Engineering and Science Inquiry
Discover which fabrics shrink the most in the wash and why.
Activity
Which Fabrics Shrink the Most in the Wash? Does Washing or Drying Cause This?
Activity
Which Fabrics Shrink the Most in the Wash? Does Washing or Drying Cause This?
Discover which fabrics shrink the most in the wash and why.
Fifth Grade
Engineering and Science Inquiry
Activity
Balloon Rocket Experiment
Activity
Balloon Rocket Experiment
Fifth Grade
Engineering and Science Inquiry
Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?
Activity
Balloon Rocket Experiment
Activity
Balloon Rocket Experiment
Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?
Fifth Grade
Engineering and Science Inquiry
Activity
Grass Turning Yellow: Chlorosis
Activity
Grass Turning Yellow: Chlorosis
Fifth Grade
Engineering and Science Inquiry
Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.
Activity
Grass Turning Yellow: Chlorosis
Activity
Grass Turning Yellow: Chlorosis
Here is a cool and easy science project to determine the rate of chlorophyll breaks down and how it affects the color change of grass from green to yellow.
Fifth Grade
Engineering and Science Inquiry
Activity
Fresh Food vs. Frozen Food
Activity
Fresh Food vs. Frozen Food
Fourth Grade
Engineering and Science Inquiry
The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.
Activity
Fresh Food vs. Frozen Food
Activity
Fresh Food vs. Frozen Food
The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.
Fourth Grade
Engineering and Science Inquiry
Activity
Preserving Foods
Activity
Preserving Foods
Fourth Grade
Engineering and Science Inquiry
This science fair project idea determines the most effective method of preserving food.
Activity
Preserving Foods
Activity
Preserving Foods
This science fair project idea determines the most effective method of preserving food.
Fourth Grade
Engineering and Science Inquiry
Activity
The Pursuit of Happiness
Activity
The Pursuit of Happiness
Fifth Grade
Engineering and Science Inquiry
This science project allows students to study the psychology of happiness.
Activity
The Pursuit of Happiness
Activity
The Pursuit of Happiness
This science project allows students to study the psychology of happiness.
Fifth Grade
Engineering and Science Inquiry
Activity
Dig This: Biodegradation
Activity
Dig This: Biodegradation
Second Grade
Engineering and Science Inquiry
How do organic materials become soil? This science experiment measures what materials biodegrade.
Activity
Dig This: Biodegradation
Activity
Dig This: Biodegradation
How do organic materials become soil? This science experiment measures what materials biodegrade.
Second 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
Soil Electrical Conductivity: Earthy Energy
Activity
Soil Electrical Conductivity: Earthy Energy
Fourth Grade
Engineering and Science Inquiry
Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...
Activity
Soil Electrical Conductivity: Earthy Energy
Activity
Soil Electrical Conductivity: Earthy Energy
Soil and energy don't go together, right? That would be as bizarre as a pairing of peanut butter and marshmallows! Well, actually...
Fourth Grade
Engineering and Science Inquiry
Activity
1
…
5
6
7
…
18