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: three, digit, and, two, step, word, problems
✕
Science
✕
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 1,249 results
Showing Results for three digit and two step word problems : Page 40
1,249 results
Search for: three, digit, and, two, step, word, problems
✕
Science
✕
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
All filters
1,249 results
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
Natural vs. Synthetic Antibiotics: Which Works Better?
Activity
Natural vs. Synthetic Antibiotics: Which Works Better?
Engineering and Science Inquiry
This science fair project idea tests the efficacy of both synthetic and natural antibiotics.
Activity
Natural vs. Synthetic Antibiotics: Which Works Better?
Activity
Natural vs. Synthetic Antibiotics: Which Works Better?
This science fair project idea tests the efficacy of both synthetic and natural antibiotics.
Engineering and Science Inquiry
Activity
Detecting Counterfeit Money
Activity
Detecting Counterfeit Money
Life Science
The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.
Activity
Detecting Counterfeit Money
Activity
Detecting Counterfeit Money
The goal of this science fair project is to demonstrate current methods of detecting counterfeit money, in particular counterfeit detection pens.
Life Science
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
Candle Lit Energy
Activity
Candle Lit Energy
Measurement
Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.
Activity
Candle Lit Energy
Activity
Candle Lit Energy
Science fair project which measures the amount of heat energy released by a burning candle by calculating how many calories of heat it emits.
Measurement
Activity
A Visual Model of the Doppler Effect
Activity
A Visual Model of the Doppler Effect
Kindergarten
Engineering and Science Inquiry
Using a toy race car kids create a visual model of the Doppler Effect.
Activity
A Visual Model of the Doppler Effect
Activity
A Visual Model of the Doppler Effect
Using a toy race car kids create a visual model of the Doppler Effect.
Kindergarten
Engineering and Science Inquiry
Activity
What Happens to a Current-Carrying Wire in a Magnetic Field?
Activity
What Happens to a Current-Carrying Wire in a Magnetic Field?
Engineering and Science Inquiry
Learn about what happens to a current-carrying wire in a magnetic field in this cool electromagnetism experiment!
Activity
What Happens to a Current-Carrying Wire in a Magnetic Field?
Activity
What Happens to a Current-Carrying Wire in a Magnetic Field?
Learn about what happens to a current-carrying wire in a magnetic field in this cool electromagnetism experiment!
Engineering and Science Inquiry
Activity
Are We Susceptible to Suggestions of Humor and Sorrow?
Activity
Are We Susceptible to Suggestions of Humor and Sorrow?
Engineering and Science Inquiry
This project will explore whether people are emotionally susceptible to suggestions of both humor and sorrow.
Activity
Are We Susceptible to Suggestions of Humor and Sorrow?
Activity
Are We Susceptible to Suggestions of Humor and Sorrow?
This project will explore whether people are emotionally susceptible to suggestions of both humor and sorrow.
Engineering and Science Inquiry
Activity
Music and Memory
Activity
Music and Memory
Engineering and Science Inquiry
Study the effect of music on random rote memory. Examine the practical application of music in learning and education.
Activity
Music and Memory
Activity
Music and Memory
Study the effect of music on random rote memory. Examine the practical application of music in learning and education.
Engineering and Science Inquiry
Activity
Visualizing Pitch
Activity
Visualizing Pitch
Engineering and Science Inquiry
This science fair project idea examines if there is a reason that musical notes are at the pitches they are.
Activity
Visualizing Pitch
Activity
Visualizing Pitch
This science fair project idea examines if there is a reason that musical notes are at the pitches they are.
Engineering and Science Inquiry
Activity
Shape of the Earth: What If?
Activity
Shape of the Earth: What If?
Engineering and Science Inquiry
What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!
Activity
Shape of the Earth: What If?
Activity
Shape of the Earth: What If?
What if the shape of the Earth weren't spherical? How does its shape affect our gravity, climate, and tides? Model these questions in this cool project!
Engineering and Science Inquiry
Activity
Foucault Pendulum and the Coriolis Effect
Activity
Foucault Pendulum and the Coriolis Effect
Engineering and Science Inquiry
Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.
Activity
Foucault Pendulum and the Coriolis Effect
Activity
Foucault Pendulum and the Coriolis Effect
Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.
Engineering and Science Inquiry
Activity
Psychophysical Distinctions: Investigating “Just Noticeable Differences”
Activity
Psychophysical Distinctions: Investigating “Just Noticeable Differences”
Engineering and Science Inquiry
Learn about the field of psychophysics and to learn about "Just Noticeable Differences."
Activity
Psychophysical Distinctions: Investigating “Just Noticeable Differences”
Activity
Psychophysical Distinctions: Investigating “Just Noticeable Differences”
Learn about the field of psychophysics and to learn about "Just Noticeable Differences."
Engineering and Science Inquiry
Activity
Burning Candles for Science!
Activity
Burning Candles for Science!
Engineering and Science Inquiry
Science fair project which examines the chemical reaction of a candle flame with various gases in order to determine the identity of the gas.
Activity
Burning Candles for Science!
Activity
Burning Candles for Science!
Science fair project which examines the chemical reaction of a candle flame with various gases in order to determine the identity of the gas.
Engineering and Science Inquiry
Activity
Ping Pong Ball Anemometer
Activity
Ping Pong Ball Anemometer
Fourth Grade
Engineering and Science Inquiry
Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.
Activity
Ping Pong Ball Anemometer
Activity
Ping Pong Ball Anemometer
Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.
Fourth Grade
Engineering and Science Inquiry
Activity
The Leidenfrost Effect: Making Water Dance on the Surface of a Hot Pan
Activity
The Leidenfrost Effect: Making Water Dance on the Surface of a Hot Pan
Measurement
In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.
Activity
The Leidenfrost Effect: Making Water Dance on the Surface of a Hot Pan
Activity
The Leidenfrost Effect: Making Water Dance on the Surface of a Hot Pan
In this science fair project idea, kids make water dance on the surface of a hot pan with the Leidenfrost Effect.
Measurement
Activity
Desalination
Activity
Desalination
Engineering and Science Inquiry
This science fair project idea produces consumable fresh water from salt water through desalination.
Activity
Desalination
Activity
Desalination
This science fair project idea produces consumable fresh water from salt water through desalination.
Engineering and Science Inquiry
Activity
Falling Objects Revisited
Activity
Falling Objects Revisited
Fourth Grade
Engineering and Science Inquiry
This science fair project idea discovers whether there are some objects that do not fall at a constant rate.
Activity
Falling Objects Revisited
Activity
Falling Objects Revisited
This science fair project idea discovers whether there are some objects that do not fall at a constant rate.
Fourth Grade
Engineering and Science Inquiry
Activity
Guys vs. Girls: Who Has Better Reflexes?
Activity
Guys vs. Girls: Who Has Better Reflexes?
Fourth Grade
Engineering and Science Inquiry
This science fair project idea examines whether boys and girls differ in reflexes.
Activity
Guys vs. Girls: Who Has Better Reflexes?
Activity
Guys vs. Girls: Who Has Better Reflexes?
This science fair project idea examines whether boys and girls differ in reflexes.
Fourth Grade
Engineering and Science Inquiry
Activity
Does Height or Distance Affect Impact?
Activity
Does Height or Distance Affect Impact?
Engineering and Science Inquiry
This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.
Activity
Does Height or Distance Affect Impact?
Activity
Does Height or Distance Affect Impact?
This science fair project idea explores if objects dropped from a high distance will equal a greater impact force than the object dropped from a low distance.
Engineering and Science Inquiry
Activity
Helium Rising
Activity
Helium Rising
Fifth Grade
Measurement
Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.
Activity
Helium Rising
Activity
Helium Rising
Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.
Fifth Grade
Measurement
Activity
Accuracy Deviation of the Cricket Thermometer
Activity
Accuracy Deviation of the Cricket Thermometer
Measurement
This science fair project idea quantifies exactly how accurate the cricket thermometer is.
Activity
Accuracy Deviation of the Cricket Thermometer
Activity
Accuracy Deviation of the Cricket Thermometer
This science fair project idea quantifies exactly how accurate the cricket thermometer is.
Measurement
Activity
How Does Color Affect Drying Time?
Activity
How Does Color Affect Drying Time?
Measurement
Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.
Activity
How Does Color Affect Drying Time?
Activity
How Does Color Affect Drying Time?
Do your laundry and your science project simultaneously! This science fair project investigates whether the color of a garment affects the time needed to dry.
Measurement
Activity
A Distant Sound
Activity
A Distant Sound
Physical Science
Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.
Activity
A Distant Sound
Activity
A Distant Sound
Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.
Physical Science
Activity
Egg Parachute
Activity
Egg Parachute
Engineering and Science Inquiry
Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!
Activity
Egg Parachute
Activity
Egg Parachute
Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!
Engineering and Science Inquiry
Activity
Removing Wrinkles From Polyester
Activity
Removing Wrinkles From Polyester
Measurement
Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.
Activity
Removing Wrinkles From Polyester
Activity
Removing Wrinkles From Polyester
Science fair project that examines various techniques for removing wrinkles from polyester garments to understand why polyester garments become wrinkled.
Measurement
Activity
Use the Altitude of Polaris to Find Latitude
Activity
Use the Altitude of Polaris to Find Latitude
Fourth Grade
Engineering and Science Inquiry
In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.
Activity
Use the Altitude of Polaris to Find Latitude
Activity
Use the Altitude of Polaris to Find Latitude
In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.
Fourth Grade
Engineering and Science Inquiry
Activity
Determine the Effect of Gray Water on Plant Growth
Activity
Determine the Effect of Gray Water on Plant Growth
Fifth Grade
Engineering and Science Inquiry
Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.
Activity
Determine the Effect of Gray Water on Plant Growth
Activity
Determine the Effect of Gray Water on Plant Growth
Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.
Fifth Grade
Engineering and Science Inquiry
Activity
DIY Rain Gauge
Activity
DIY Rain Gauge
Fourth Grade
Earth and Space Science
In this science fair project, students make their own rain gauge to measure rainfall.
Activity
DIY Rain Gauge
Activity
DIY Rain Gauge
In this science fair project, students make their own rain gauge to measure rainfall.
Fourth Grade
Earth and Space Science
Activity
How Much Can Be Communicated Through Touch?
Activity
How Much Can Be Communicated Through Touch?
Engineering and Science Inquiry
This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.
Activity
How Much Can Be Communicated Through Touch?
Activity
How Much Can Be Communicated Through Touch?
This project explores how well couples convey complex emotions such as envy and pride to one another solely through the sense of touch.
Engineering and Science Inquiry
Activity
Grade "A" Salaries
Activity
Grade "A" Salaries
Engineering and Science Inquiry
Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA
Activity
Grade "A" Salaries
Activity
Grade "A" Salaries
Determines the extent that high school GPA predicts future income. Survey volunteers, divide GPA into 5 categories, compare income levels with GPA
Engineering and Science Inquiry
Activity
1
…
39
40
41
42