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Cells Tissues Organs
life science · NGSS 4-LS1-1
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“organic molecules” worksheets and activities
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Grades 3–5
How Bones Protect Organs
life science · NGSS 4-LS1-1
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Grades 5–8
Could There Be Life on Enceladus
earth science · MS-ESS1-1
$1.50
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Grades 5–8
Levels of Organization
life science · MS-LS1-3
$1.50
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Grades 5–8
Atomic Structure
science · MS-PS1-1
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Grade 6
From Cells to Organisms
life science
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How Organ Systems Work Together
life science · NGSS 4-LS1-1
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Grades 5–8
Organization of the Human Body
life science · MS-LS1-3
$1.50
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Grades 5–8
Particle Model of Matter
physical science · MS-PS1-1
$1.50
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Grades 5–8
What Mars Rovers Have Discovered
earth science · MS-ESS1-3
$1.50
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Grade 6
The Aorta: Molecules to Organisms of the Body's Largest Artery
life science
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Grades 6–8
What Are Fossil Fuels
earth science · MS-ESS3-1
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How Decomposers Return Carbon to the Soil
earth science · MS-ESS2-1
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How Does Biomass Store and Release Energy
earth science · MS-ESS3-1
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Grades 5–8
Covalent Bonds
physical science · MS-PS1-1
$1.50
Passage
Grades 3–5
Biomass Energy
physical science · NGSS 4-ESS3-1
$1.50
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Grade 6
Aortic Pathway
science
$1.50
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Grades 5–8
Scientific Theories
science · MS-PS1-1
$1.50
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Grade 6
Are Plants Autotrophs?
life science
$1.50
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Grades 3–6
What Is Air Pressure?
weather and climate
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Chemical Bonds
science · MS-PS1-1
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Grades 5–8
Valence Electrons
physical science · MS-PS1-1
Free
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Grades 3–6
The Cytoplasm: The Cell's Inner World
science
$1.50
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Grades 3–8
How do Amphibians Breathe?
science
$1.50
Passage
Grades 3–8
what is a Polar Covalent Bond
physical science
$1.50
Passage
Grades 3–5
Animal Internal Structure
life science · NGSS 4-LS1-1
$1.50
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Grades 5–8
Soil Formation and Composition
science · MS-ESS2-1
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Grade 5
Particle Movement Sort
science · 5-PS1-1
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Grades 7–9
How Can We Help Pollinators and Stop Their Decline?
science · MS-LS2-4
$1.50
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Grades 5–8
What Would Happen If Bees Went Extinct?
science · MS-LS2-4
Free
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Grades 6–8
How Ancient Seas Form Petroleum Deposits
earth science · MS-ESS3-1
$1.50
Passage
Grade 6
Gharial vs. Crocodile vs. Alligator
science
$1.50
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Grade 6
The Life Cycle of a Giant Panda
science
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What does the Sympathetic Nervous System do
science
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Grade 6
Barnacles and Biofouling
science
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Grade 6
What Is Bioluminescence?
science
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Grade 6
What Do Giant Isopod Eat
science
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Grades 3–8
Do Frogs Have Lungs
science
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Grade 6
Giant Squid Anatomy
science
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Grades 5–8
Types of Radiation
physical science · MS-PS1-2
$1.50
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Radioactive Decay
physical science · MS-PS1-3
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Nuclear Safety and Waste
physical science · MS-PS3-4
$1.50
Passage
Grades 5–8
Nuclear Fusion
physical science · MS-PS1-1
$1.50
Passage
Grades 5–8
Nuclear Fission
physical science · MS-PS1-1
$1.50
Passage
Grades 5–8
How Many Valence Electrons Does Oxygen Have?
physical science · MS-PS1-2
Free
Passage
Grades 5–8
How Many Neutrons Does Hydrogen Have?
physical science · MS-PS1
Free
Passage
Grades 5–8
Do Protons and Electrons Have the Same Mass?
physical science · MS-PS1
$1.50
Passage
Grades 5–8
How Atoms Differ
physical science · MS-PS1-1
$1.50
Passage
Grades 5–8
What are Ions
physical science · MS-PS1-1
$1.50
Passage
Grades 5–8
Uses of Radioactivity
physical science · MS-PS1-1
$1.50
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