🔬 3rd Grade Science · Unit 5

Forces, Motion and Magnets

24 short narrated lessons in 5 chapters, each with pictures, a quiz with a hint and a second try, and an explanation for every answer.

Standards: 3-PS2-1 3-PS2-2 3-PS2-3 3-PS2-4 3-5-ETS1-1

3rd Grade Science · 5 units

What your child will learn

Forces All Around UsExplain that a force is a push or a pull that can make things move, stop or change direction.
Balanced ForcesExplain that balanced forces, like an even tug-of-war, do not change an object's motion.
Unbalanced ForcesExplain that unbalanced forces make an object start moving, speed up, slow down or turn.
FrictionExplain how friction slows things down and why some surfaces have more friction than others.
Pushes and Pulls Review ReviewReview forces, balanced and unbalanced forces, and friction.

Swings and PendulumsObserve the back-and-forth pattern of a swing or pendulum.
Rolling Balls and RampsObserve how balls roll on ramps and find patterns in how far they go.
Seesaws Go Up and DownObserve the up-and-down pattern of a seesaw.
Predicting MotionUse a pattern in an object's motion to predict what it will do next.
Motion Patterns Review ReviewReview how patterns help us predict motion.

Attract and RepelExplain that magnet poles attract or repel each other.
What Sticks to a Magnet?Sort objects into those that are and are not attracted to magnets.
Magnets Work Through ThingsShow that magnets can push or pull through paper, water and other materials without touching.
Closer Means StrongerExplain that a magnet's pull gets stronger as objects get closer.
Magnets Review ReviewReview how magnets attract, repel and act from a distance.

Balloon HairExplain why rubbing a balloon on hair makes the hair stand up (static electricity).
Sparks and ShocksExplain why you sometimes get a small shock touching a doorknob.
Electric and Magnetic ForcesCompare static electric forces with magnetic forces; both act without touching.
Static Electricity Review ReviewReview static electricity and how it compares to magnetism.

Design a Magnetic LatchDesign a latch that uses magnets to keep a door closed.
Sorting Metals at a Recycling CenterExplain how magnets separate steel cans from aluminum cans.
Magnets in Everyday ThingsFind magnets in everyday objects like fridge doors, speakers and toys.
Magnet Design Review ReviewReview how magnets help solve real problems.
Unit 5 Test: Forces, Motion and MagnetsShow what you learned in the whole unit (Pushes and pulls, Patterns in motion, Magnets, Static electricity, Solving problems with magnets) by answering mixed questions.

From the lesson “Forces All Around Us”

What is a force?

Show the answer

A push or a pull. A force is a push or a pull, like pulling a wagon or pushing a swing.

Hint kids see after a wrong try: “Think about the wagon.”

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Narrated lessons, pictures and quizzes for every grade from K to 8. Works offline.