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Wonders of Science
The Earth and Beyond
The Human Body
Land Animals
Matter, Motion, and Machines
Plant Life
Water Life
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Unit 1 — The Solar System
We See the Moon
How Does the Moon Seem to Change? 2
Pictures in the Sky 2
The Earth 2
Unit 2 — Weather
The Water Cycle 2
What Kinds of Clouds Do You See?
Using a Thermometer
Measuring Temperature
Thunderstorm Safety
The Water Cycle 3
Unit 3 — Land and Water
Types of Soils
Using the Ocean Water
Unit 4 — Regions of Earth
Look at Leaves
The Place Is Dry!
Unit 5 — Shaping the Surface
Water Changes the Land
Water Changes Rocks
Erosion 2
How Can Erosion Be Slowed?
Unit 6 — The Changing Earth
Our Changing Earth 2
Inside the Earth 2
Unit 7 — Materials of Earth
Be a Fossil Detective 2
How Fossils Were Formed
Unit 8 — Conservation
Keeping Earth Safe
Smog Detector
Pollution of Air 2
Unit 1 — How the Body Is Organized
Unit 2 — Body Systems
Muscle Magic 2
Unit 3 — More Body Systems
Comparing Food Groups
Fat Test
Unit 4 — The Nervous System
Spooky Senses
My Sense Observation
Your Heart and Lungs
Unit 5 — Human Reproduction
Unit 6 — Diseases
Staying Healthy 3
Do You Take Good Care of Yourself? 2
Using Bacteria to Stay Healthy
Unit 7 — Avoiding Health Problems
Smoking
Unit 8 — First Aid
Poisons in Your Home
Unit 1 — Animal Adaptations
Staying Alive! 2
Fit to Find Food 2
Animal Facts 2
Unit 2 — Invertebrate Animals
Into Insects
Inside Out
Unit 3 — Amphibians
It's a Frog's Life
Can You Show a Frog's Life Cycle?
Unit 4 — Reptiles
Reptiles Are Cool (and Warm)
Snaking Around
How Can You Group Reptiles?
A Swampy Home
Unit 5 — Birds
Up, Up, and Away!
Why Are a Bird's Feathers Important?
Unit 6 — Mammals
Fuzzy Points
Unit 7 — Conservation
Animals in Danger
Extinct and Endangered
How Can We Save Animals?
Unit 1 — Matter
Measuring SolidsÑ Mass
Does Air Have Weight?
The Pull of Gravity
Matter Has Mass
Water Can Change Form
Unit 2 — Changes in Matter
Mixtures
From Solid to Liquid
From Liquid to Gas
Making Soap Bars
Unit 3 — Nature's Energies
Air and Water
The Wind
Sources of Heat
Energy Detective
Unit 4 — Sound and Light
Guitars
Make a Band
What Colors Are in Light?
Unit 5 — Magnetism and Electricity
Poles Apart
Static Electricity 2
What Can a Magnet Pick Up? 2
Unit 6 — Motion and Forces
Gravity and Weight
Is the Force a Push or Pull?
Is Gravity Working?
Unit 7 — Machines
What Helps Things Move?
Compound Machines
Unit 8 — Technology
Unit 1 — Plants Are Living Things
Parts of Plants
Plants in the Garden
Leaves at Work 2
Can Fungi Grow on Food?
Is It a Plant?
Green Plants 2
Tubes or No Tubes?
Unit 2 — Flowers
Inside a Flower 2
Kitchen Garden
Unit 3 — Grasses and Cereals
Unit 4 — Trees
Trees Go Through Changes
Terrific Trees
Tree Rings
Unit 5 — Plants Used as Food
How Are Seeds Different?
Designing with Seeds
Plants We Eat
Unit 6 — Plant Adaptations
Unit 7 — Plant Products
Unit 8 — Conservation
Unit 1 — Water Environments
Unit 2 — Water Plants
How Are Water and Plants Different?
How Does Sunlight Affect Water Plants?
Unit 3 — Invertebrate Water Animals
What Do Ocean Animals Look Like?
Unit 4 — Fish
Observe—a—Fish
Some Animals Live in Water
Go Fish!
Unit 5 — Water Reptiles
Unit 6 — Water Birds
Unit 7 — Water Mammals
Unit 8 — Conservation
How Can We Save Animals? 2
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