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Lesson · Grade 2 · Science

Forces That Work Without Touching

  • Grade 2
  • Science
  • 47 s
  • British Columbia
  • BC2-SC-09

Two bar magnets pull together across a gap when a north end faces a south end (attract), and push apart when two north ends face each other (repel). Then a balloon rubbed on a child's hair is lifted up, and the hair rises toward it without touching, which the video names static electricity.

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In one sentence

The question this lesson answers

Can a force push or pull without touching?

Here are two magnets with a gap.

Transcript

What the lesson says

Can a force push or pull without touching?

Here are two magnets with a gap.

Each magnet has a north end and a south end.

North and south pull together across the gap. They attract!

Now put two north ends face to face.

They push apart without touching. They repel!

Now rub a balloon on your hair.

Lift it up, and your hair rises toward it.

This pull is called static electricity.

Magnets and static electricity work without touching.

Curriculum

Where this fits

British Columbia, Grade 2

Science, Physics: types of forcesBC2-SC-09

Previous: Tug of War: Balanced and Unbalanced PullsNext: Air Resistance: Why a Flat Sheet Falls Slower

The outcomes and strands follow the British Columbia curriculum.

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