SKIP TO CONTENT
Worksheet Generator
Subjects
Grades
Worksheets
Games
Build a Worksheet
More Resources
Roly Recommends
Reading Month
Subjects
Grades
Worksheets
Games
Build a Worksheet
More Resources
Roly Recommends
Reading Month
All Subjects
Science
Subtopics:
Physical Science
Life Science
Engineering and Science Inquiry
Computer Science
Show Less
Filters
Search for: crack, the, code
✕
Science
✕
4th and 5th Grade
✕
Activities
✕
Subjects
Math
English Language Arts
Science
Social Studies
Grade Level
Pre-K
K
1st
2nd
3rd
4th
5th
6th
7th
8th
Early Childhood
Elementary School
Middle School
Resource Type
Worksheets
Games
Lesson Plans
Activities
Occasion
Mother's Day
Fall
Holidays
See More
Clear All
View 11 results
Showing Results for crack the code
11 results
Search for: crack, the, code
✕
Science
✕
4th and 5th Grade
✕
Activities
✕
Clear All
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
All filters
11 results
Sort by:
Relevance
Most recent
Most popular
Alphabetical A-Z
Alphabetical Z-A
How Can You Tell The Age Of An Egg Without Cracking It Open?
Activity
How Can You Tell The Age Of An Egg Without Cracking It Open?
Fifth Grade
Engineering and Science Inquiry
Demonstrate how to tell the age of an egg without having to crack it open.
Activity
How Can You Tell The Age Of An Egg Without Cracking It Open?
Activity
How Can You Tell The Age Of An Egg Without Cracking It Open?
Demonstrate how to tell the age of an egg without having to crack it open.
Fifth Grade
Engineering and Science Inquiry
Activity
Get Cracking
Activity
Get Cracking
Second Grade
Engineering and Science Inquiry
Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.
Activity
Get Cracking
Activity
Get Cracking
Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.
Second Grade
Engineering and Science Inquiry
Activity
Examples of Mechanical Weathering
Activity
Examples of Mechanical Weathering
Fifth Grade
Engineering and Science Inquiry
Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.
Activity
Examples of Mechanical Weathering
Activity
Examples of Mechanical Weathering
Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.
Fifth Grade
Engineering and Science Inquiry
Activity
Robot Traffic Jam
Activity
Robot Traffic Jam
Fifth Grade
Engineering and Science Inquiry
This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.
Activity
Robot Traffic Jam
Activity
Robot Traffic Jam
This activity challenges your student to use spatial reasoning and computational thinking to program multiple robots.
Fifth Grade
Engineering and Science Inquiry
Activity
Seafloor Spreading Model
Activity
Seafloor Spreading Model
Fourth Grade
Engineering and Science Inquiry
In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.
Activity
Seafloor Spreading Model
Activity
Seafloor Spreading Model
In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.
Fourth Grade
Engineering and Science Inquiry
Activity
Rate of Evaporation
Activity
Rate of Evaporation
Second Grade
Engineering and Science Inquiry
The goal of this evaporation experiment is to learn about how different external conditions affect drying time.
Activity
Rate of Evaporation
Activity
Rate of Evaporation
The goal of this evaporation experiment is to learn about how different external conditions affect drying time.
Second Grade
Engineering and Science Inquiry
Activity
Dew Point, Humidity and Weather
Activity
Dew Point, Humidity and Weather
Second Grade
Engineering and Science Inquiry
Science fair project that examines condensation and the conditions needed in order for dew to form.
Activity
Dew Point, Humidity and Weather
Activity
Dew Point, Humidity and Weather
Science fair project that examines condensation and the conditions needed in order for dew to form.
Second Grade
Engineering and Science Inquiry
Activity
Pumpkin Investigation
Activity
Pumpkin Investigation
Third Grade
Life Science
Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin
Activity
Pumpkin Investigation
Activity
Pumpkin Investigation
Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin
Third Grade
Life Science
Activity
How Does Salinity and Temperature Affect the Density of Water?
Activity
How Does Salinity and Temperature Affect the Density of Water?
Fourth Grade
Engineering and Science Inquiry
The objective of this science fair project is to analyze the effects of salinity and temperature on water.
Activity
How Does Salinity and Temperature Affect the Density of Water?
Activity
How Does Salinity and Temperature Affect the Density of Water?
The objective of this science fair project is to analyze the effects of salinity and temperature on water.
Fourth Grade
Engineering and Science Inquiry
Activity
Soil pH: Acid or Alkaline?
Activity
Soil pH: Acid or Alkaline?
Fourth Grade
Engineering and Science Inquiry
Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.
Activity
Soil pH: Acid or Alkaline?
Activity
Soil pH: Acid or Alkaline?
Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.
Fourth Grade
Engineering and Science Inquiry
Activity
Easy Fudge
Activity
Easy Fudge
Fifth Grade
Measurement
This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!
Activity
Easy Fudge
Activity
Easy Fudge
This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!
Fifth Grade
Measurement
Activity
1