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
Observations and Data Collection
Show Less
Filters
Search for: how, when
✕
Science
✕
Activities
✕
2nd and 3rd Grade
✕
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
See More
Clear All
View 244 results
Showing Results for how when : Page 8
244 results
Search for: how, when
✕
Science
✕
Activities
✕
2nd and 3rd Grade
✕
Clear All
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
All filters
244 results
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
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
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
Heating Plants: The Great Growth Race
Activity
Heating Plants: The Great Growth Race
Third Grade
Measurement
Do you think heat can affect a plant's growth rate?
Activity
Heating Plants: The Great Growth Race
Activity
Heating Plants: The Great Growth Race
Do you think heat can affect a plant's growth rate?
Third Grade
Measurement
Activity
Why Doesn't the Ocean Freeze?
Activity
Why Doesn't the Ocean Freeze?
Second Grade
Measurement
Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.
Activity
Why Doesn't the Ocean Freeze?
Activity
Why Doesn't the Ocean Freeze?
Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.
Second Grade
Measurement
Activity
What Animals are Most Popular? A Data Analysis Project
Activity
What Animals are Most Popular? A Data Analysis Project
Second Grade
Engineering and Science Inquiry
What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.
Activity
What Animals are Most Popular? A Data Analysis Project
Activity
What Animals are Most Popular? A Data Analysis Project
What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.
Second Grade
Engineering and Science Inquiry
Activity
Sound Physics: The Difference Between Sound and Noise
Activity
Sound Physics: The Difference Between Sound and Noise
Third Grade
Engineering and Science Inquiry
Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.
Activity
Sound Physics: The Difference Between Sound and Noise
Activity
Sound Physics: The Difference Between Sound and Noise
Learn about sound physics and do a survey experiment to explore the difference between sound and noise in this science project.
Third Grade
Engineering and Science Inquiry
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
Hot Dog Mummy
Activity
Hot Dog Mummy
First Grade
Engineering and Science Inquiry
In this experiment you will replicate the mummification process by making a hot dog mummy.
Activity
Hot Dog Mummy
Activity
Hot Dog Mummy
In this experiment you will replicate the mummification process by making a hot dog mummy.
First Grade
Engineering and Science Inquiry
Activity
Streak Test
Activity
Streak Test
Second Grade
Engineering and Science Inquiry
In this science fair project, students use the streak test to tell minerals apart from each other.
Activity
Streak Test
Activity
Streak Test
In this science fair project, students use the streak test to tell minerals apart from each other.
Second Grade
Engineering and Science Inquiry
Activity
Plants Form Water
Activity
Plants Form Water
First Grade
Life Science
This science fair project idea demonstrates that plants give off water.
Activity
Plants Form Water
Activity
Plants Form Water
This science fair project idea demonstrates that plants give off water.
First Grade
Life 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
Talking to Plants
Activity
Talking to Plants
Third Grade
Physical Science
This science fair project idea explores whether talking to a plant will help it grow.
Activity
Talking to Plants
Activity
Talking to Plants
This science fair project idea explores whether talking to a plant will help it grow.
Third Grade
Physical Science
Activity
Does Hot Water Boil Faster Than Cold?
Activity
Does Hot Water Boil Faster Than Cold?
Second Grade
Engineering and Science Inquiry
Discover whether cold or hot water from the faucet will boil faster on the stove.
Activity
Does Hot Water Boil Faster Than Cold?
Activity
Does Hot Water Boil Faster Than Cold?
Discover whether cold or hot water from the faucet will boil faster on the stove.
Second Grade
Engineering and Science Inquiry
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
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
Paper Towel Science Project: Capillarity
Activity
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
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
Soap Bubbles
Activity
Soap Bubbles
Third Grade
Engineering and Science Inquiry
This science fair project idea explores substances that cause a bubble to last longer.
Activity
Soap Bubbles
Activity
Soap Bubbles
This science fair project idea explores substances that cause a bubble to last longer.
Third Grade
Engineering and Science Inquiry
Activity
Clear or Opaque?
Activity
Clear or Opaque?
Third Grade
Engineering and Science Inquiry
This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?
Activity
Clear or Opaque?
Activity
Clear or Opaque?
This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?
Third Grade
Engineering and Science Inquiry
Activity
Which Gum has the Longest Lasting Flavor?
Activity
Which Gum has the Longest Lasting Flavor?
Third Grade
Engineering and Science Inquiry
Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!
Activity
Which Gum has the Longest Lasting Flavor?
Activity
Which Gum has the Longest Lasting Flavor?
Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!
Third Grade
Engineering and Science Inquiry
Activity
Horse Memory
Activity
Horse Memory
Second Grade
Engineering and Science Inquiry
Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.
Activity
Horse Memory
Activity
Horse Memory
Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.
Second Grade
Engineering and Science Inquiry
Activity
Favorite Colors
Activity
Favorite Colors
Second Grade
Engineering and Science Inquiry
Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.
Activity
Favorite Colors
Activity
Favorite Colors
Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.
Second Grade
Engineering and Science Inquiry
Activity
Is There a Relationship Between Tempo and Genre?
Activity
Is There a Relationship Between Tempo and Genre?
Second Grade
Engineering and Science Inquiry
Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.
Activity
Is There a Relationship Between Tempo and Genre?
Activity
Is There a Relationship Between Tempo and Genre?
Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.
Second Grade
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
Turtle Habitat
Activity
Turtle Habitat
Second Grade
Measurement
Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.
Activity
Turtle Habitat
Activity
Turtle Habitat
Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.
Second Grade
Measurement
Activity
Parachutes
Activity
Parachutes
First Grade
Engineering and Science Inquiry
This science fair project idea determines if the size of the parachute will change the rate at which an object falls.
Activity
Parachutes
Activity
Parachutes
This science fair project idea determines if the size of the parachute will change the rate at which an object falls.
First Grade
Engineering and Science Inquiry
Activity
What Is a Compound Microscope?
Activity
What Is a Compound Microscope?
Third Grade
Engineering and Science Inquiry
What is a compound microscope? Kids find out by making one of their own in this cool science fair project.
Activity
What Is a Compound Microscope?
Activity
What Is a Compound Microscope?
What is a compound microscope? Kids find out by making one of their own in this cool science fair project.
Third Grade
Engineering and Science Inquiry
Activity
3D Animal Cell Model
Activity
3D Animal Cell Model
Third Grade
Engineering and Science Inquiry
Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.
Activity
3D Animal Cell Model
Activity
3D Animal Cell Model
Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.
Third Grade
Engineering and Science Inquiry
Activity
The Placebo Effect
Activity
The Placebo Effect
Second Grade
Engineering and Science Inquiry
Test your friends to find out if you can replicate the placebo effect's incredible results.
Activity
The Placebo Effect
Activity
The Placebo Effect
Test your friends to find out if you can replicate the placebo effect's incredible results.
Second Grade
Engineering and Science Inquiry
Activity
Geography, Latitude, and the North Star: Where Am I?
Activity
Geography, Latitude, and the North Star: Where Am I?
Second Grade
Engineering and Science Inquiry
Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.
Activity
Geography, Latitude, and the North Star: Where Am I?
Activity
Geography, Latitude, and the North Star: Where Am I?
Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.
Second Grade
Engineering and Science Inquiry
Activity
Soda Calories
Activity
Soda Calories
Third Grade
Engineering and Science Inquiry
Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.
Activity
Soda Calories
Activity
Soda Calories
Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.
Third Grade
Engineering and Science Inquiry
Activity
1
…
6
7
8
9