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: how, when
✕
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 1,405 results
Showing Results for how when : Page 39
1,405 results
Search for: how, when
✕
Science
✕
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
All filters
1,405 results
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
Candy Chromatography
Activity
Candy Chromatography
Engineering and Science Inquiry
Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!
Activity
Candy Chromatography
Activity
Candy Chromatography
Analytical chemists perform chromatography to separate colors into pigments. Test the food coloring used in M&M's and Skittles candy in this fun project!
Engineering and Science Inquiry
Activity
Create a Contour Map
Activity
Create a Contour Map
Fourth Grade
Engineering and Science Inquiry
The goal of this project is to create an exciting topographical map out of dough.
Activity
Create a Contour Map
Activity
Create a Contour Map
The goal of this project is to create an exciting topographical map out of dough.
Fourth Grade
Engineering and Science Inquiry
Activity
Decaying Food
Activity
Decaying Food
Engineering and Science Inquiry
Activity
Decaying Food
Activity
Decaying Food
Engineering and Science Inquiry
Activity
Heavy Backpacks
Activity
Heavy Backpacks
Engineering and Science Inquiry
Activity
Heavy Backpacks
Activity
Heavy Backpacks
Engineering and Science Inquiry
Activity
The Best Choice for Growing Large, Flowering Plants
Activity
The Best Choice for Growing Large, Flowering Plants
Measurement
The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.
Activity
The Best Choice for Growing Large, Flowering Plants
Activity
The Best Choice for Growing Large, Flowering Plants
The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.
Measurement
Activity
Can We Stretch the Body by Stretching the Mind?
Activity
Can We Stretch the Body by Stretching the Mind?
Engineering and Science Inquiry
Explore the neural and mental mechanisms at play in mental imagery.
Activity
Can We Stretch the Body by Stretching the Mind?
Activity
Can We Stretch the Body by Stretching the Mind?
Explore the neural and mental mechanisms at play in mental imagery.
Engineering and Science Inquiry
Activity
Candy pH
Activity
Candy pH
Fourth Grade
Engineering and Science Inquiry
Take a dive into the candy jar with this yummy science experiment.
Activity
Candy pH
Activity
Candy pH
Take a dive into the candy jar with this yummy science experiment.
Fourth Grade
Engineering and Science Inquiry
Activity
Electrolysis of Water Experiment
Activity
Electrolysis of Water Experiment
Engineering and Science Inquiry
In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.
Activity
Electrolysis of Water Experiment
Activity
Electrolysis of Water Experiment
In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.
Engineering and Science Inquiry
Activity
Earthquakes: What Can We Learn from History?
Activity
Earthquakes: What Can We Learn from History?
Physical Science
This science project examines the history of earthquakes and what we can do to prevent future disasters.
Activity
Earthquakes: What Can We Learn from History?
Activity
Earthquakes: What Can We Learn from History?
This science project examines the history of earthquakes and what we can do to prevent future disasters.
Physical Science
Activity
Does Nail Polish Slow the Growth of Nails?
Activity
Does Nail Polish Slow the Growth of Nails?
Engineering and Science Inquiry
Does nail polish really slow the growth of nails? Explore in this science fair project idea.
Activity
Does Nail Polish Slow the Growth of Nails?
Activity
Does Nail Polish Slow the Growth of Nails?
Does nail polish really slow the growth of nails? Explore in this science fair project idea.
Engineering and Science Inquiry
Activity
Descriptive Reduction Exercise
Activity
Descriptive Reduction Exercise
Engineering and Science Inquiry
This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.
Activity
Descriptive Reduction Exercise
Activity
Descriptive Reduction Exercise
This interactive project invites science fair-goers to participate in examination and recording to demonstrate the importance of firsthand observation.
Engineering and Science Inquiry
Activity
Effective Hand Washing
Activity
Effective Hand Washing
First Grade
Engineering and Science Inquiry
This science fair project idea determines which method of hand cleansing is the most effective.
Activity
Effective Hand Washing
Activity
Effective Hand Washing
This science fair project idea determines which method of hand cleansing is the most effective.
First Grade
Engineering and Science Inquiry
Activity
Evaluating Choice Blindness: Do You Know What You Want?
Activity
Evaluating Choice Blindness: Do You Know What You Want?
Engineering and Science Inquiry
This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.
Activity
Evaluating Choice Blindness: Do You Know What You Want?
Activity
Evaluating Choice Blindness: Do You Know What You Want?
This experiment evaluates whether the phenomenon of "choice blindness" occurs more often with men or women.
Engineering and Science Inquiry
Activity
Does Praise Enhance Future Performance?
Activity
Does Praise Enhance Future Performance?
Engineering and Science Inquiry
In this experiment you will evaluate whether praise improves athletic performance.
Activity
Does Praise Enhance Future Performance?
Activity
Does Praise Enhance Future Performance?
In this experiment you will evaluate whether praise improves athletic performance.
Engineering and Science Inquiry
Activity
Does Motivational Music Improve Athletic Performance?
Activity
Does Motivational Music Improve Athletic Performance?
Engineering and Science Inquiry
This experiment evaluates whether motivational music can improve athletic performance.
Activity
Does Motivational Music Improve Athletic Performance?
Activity
Does Motivational Music Improve Athletic Performance?
This experiment evaluates whether motivational music can improve athletic performance.
Engineering and Science Inquiry
Activity
Which Wheel Works Best? An Exploration Into Skateboarding
Activity
Which Wheel Works Best? An Exploration Into Skateboarding
Engineering and Science Inquiry
This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.
Activity
Which Wheel Works Best? An Exploration Into Skateboarding
Activity
Which Wheel Works Best? An Exploration Into Skateboarding
This science fair project idea determines if material and tensile strength of different types of skateboard wheels affects the velocity of the skateboarder.
Engineering and Science Inquiry
Activity
Thirsty Plants
Activity
Thirsty Plants
Fourth Grade
Engineering and Science Inquiry
Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.
Activity
Thirsty Plants
Activity
Thirsty Plants
Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.
Fourth Grade
Engineering and Science Inquiry
Activity
Meteorologist for a Day
Activity
Meteorologist for a Day
Kindergarten
Engineering and Science Inquiry
This experiment challenges students to forecast the weather based on the surrounding areas' weather.
Activity
Meteorologist for a Day
Activity
Meteorologist for a Day
This experiment challenges students to forecast the weather based on the surrounding areas' weather.
Kindergarten
Engineering and Science Inquiry
Activity
Ripening Avocados
Activity
Ripening Avocados
Second Grade
Engineering and Science Inquiry
In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.
Activity
Ripening Avocados
Activity
Ripening Avocados
In this fun science experiment, kids will determine the best method for ripening avocados and discover the cool chemical reaction that makes this possible.
Second Grade
Engineering and Science Inquiry
Activity
What is the Best Way to Disinfect a Toothbrush?
Activity
What is the Best Way to Disinfect a Toothbrush?
Measurement
This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.
Activity
What is the Best Way to Disinfect a Toothbrush?
Activity
What is the Best Way to Disinfect a Toothbrush?
This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.
Measurement
Activity
Observing the Principle of Conservation of Mass
Activity
Observing the Principle of Conservation of Mass
Engineering and Science Inquiry
This science fair project idea discovers the principle of conservation of mass.
Activity
Observing the Principle of Conservation of Mass
Activity
Observing the Principle of Conservation of Mass
This science fair project idea discovers the principle of conservation of mass.
Engineering and Science Inquiry
Activity
Reptile Activity Level
Activity
Reptile Activity Level
Measurement
This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.
Activity
Reptile Activity Level
Activity
Reptile Activity Level
This science fair project idea examines reptile behavior and to determine whether reptiles are more active during warmer temperatures.
Measurement
Activity
Do Packaged Seeds Expire?
Activity
Do Packaged Seeds Expire?
Fourth Grade
Engineering and Science Inquiry
Find out whether packaged seeds actually do expire in this new science fair project idea.
Activity
Do Packaged Seeds Expire?
Activity
Do Packaged Seeds Expire?
Find out whether packaged seeds actually do expire in this new science fair project idea.
Fourth Grade
Engineering and Science Inquiry
Activity
The Science of Sleep: Testing Dream Recall
Activity
The Science of Sleep: Testing Dream Recall
Sixth Grade
Engineering and Science Inquiry
This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.
Activity
The Science of Sleep: Testing Dream Recall
Activity
The Science of Sleep: Testing Dream Recall
This experiment explores the question of whether age and/or gender play a role in people's ability to remember dreams.
Sixth Grade
Engineering and Science Inquiry
Activity
Studying Visual Trickery with the McCollough Effect
Activity
Studying Visual Trickery with the McCollough Effect
Engineering and Science Inquiry
The objective of this experiment is to evaluate which types of people are most impacted by the McCollough effect.
Activity
Studying Visual Trickery with the McCollough Effect
Activity
Studying Visual Trickery with the McCollough Effect
The objective of this experiment is to evaluate which types of people are most impacted by the McCollough effect.
Engineering and Science Inquiry
Activity
Do Hand Soaps and Sanitizers Prevent the Growth of Bread Mold?
Activity
Do Hand Soaps and Sanitizers Prevent the Growth of Bread Mold?
Third Grade
Engineering and Science Inquiry
Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.
Activity
Do Hand Soaps and Sanitizers Prevent the Growth of Bread Mold?
Activity
Do Hand Soaps and Sanitizers Prevent the Growth of Bread Mold?
Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.
Third Grade
Engineering and Science Inquiry
Activity
Acoustics: The Study of Sound
Activity
Acoustics: The Study of Sound
Physical Science
The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.
Activity
Acoustics: The Study of Sound
Activity
Acoustics: The Study of Sound
The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.
Physical Science
Activity
The Effect of Humidity and Temperature on Percussive Pitch
Activity
The Effect of Humidity and Temperature on Percussive Pitch
Measurement
This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.
Activity
The Effect of Humidity and Temperature on Percussive Pitch
Activity
The Effect of Humidity and Temperature on Percussive Pitch
This science fair project idea quantifies the effect of weather- in this case temperature and humidity- on musical instruments.
Measurement
Activity
Color and Heat Absorption
Activity
Color and Heat Absorption
Third Grade
Engineering and Science Inquiry
The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.
Activity
Color and Heat Absorption
Activity
Color and Heat Absorption
The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.
Third Grade
Engineering and Science Inquiry
Activity
Free Falling
Activity
Free Falling
Engineering and Science Inquiry
Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.
Activity
Free Falling
Activity
Free Falling
Demonstrate Newton's laws of motion by examining the relationship between mass, force, and acceleration during free-fall.
Engineering and Science Inquiry
Activity
1
…
38
39
40
…
47