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Science Lesson Kit · Teacher Resource

Air Is Matter: It Takes Up Space & Can Push — 5E Lesson Plan

Physical Science · 40 minutes

Grade 2

5E lesson flow

  1. 01

    Engage

    5 min

    Teacher Does

    Show a flat balloon and then inflate it.

    Students Do

    Describe what changed and suggest what is inside.

    Ask

    • What made the balloon larger?

    Look For

    Air moved inside and filled space.

  2. 02

    Explore

    12 min

    Teacher Does

    Rotate through a balloon, cup-tissue, and closed-syringe demonstration.

    Students Do

    Observe each result and record what changed.

    Ask

    • What can you see even if you cannot see the air?

    Look For

    Expansion, blocked water, and pushback.

  3. 03

    Explain

    8 min

    Teacher Does

    Connect observations to air, matter, space, evidence, and compress.

    Students Do

    Use the frame: I observed ___, so the air must ___.

    Ask

    • Which observation is your evidence?

    Look For

    Evidence tied to taking up space or pushing.

  4. 04

    Elaborate

    8 min

    Teacher Does

    Show a soft bottle with a balloon fitted to the opening.

    Students Do

    Predict what happens when the bottle is squeezed and explain why.

    Ask

    • Where does the air move?

    Look For

    Air moves from bottle into balloon and pushes it outward.

  5. 05

    Evaluate

    7 min

    Teacher Does

    Show a new sealed bag or syringe setup.

    Students Do

    Give one claim and one observation that supports it.

    Ask

    • What does this show about air?

    Look For

    Clear claim plus visible evidence.

Student goal

I can use observations to explain that air takes up space and can push.

Learning objectives

  • Use observations to show that air takes up space even when we cannot see it.
  • Use evidence to explain how trapped air can push back when it is squeezed.
  • Plan a simple fair test that uses observable evidence about air.

Materials

  • Balloons
  • Clear plastic cups
  • Tissues
  • Tub of water
  • Needle-free plastic syringes
  • Soft plastic bottle
  • Small balloon
  • Resealable bags

Before class

  • Use only needle-free syringes.
  • Check balloons for latex needs before use.
  • Prepare a shallow water tub and towels.
  • Keep cup-tissue demonstrations upright and controlled.
  • Open Teach Mode and Read Aloud.

Prior knowledge

  • Students know solids and liquids take up space.
  • Students have felt moving air such as wind.

Vocabulary

air
A mixture of gases around us that we usually cannot see.
matter
Anything that takes up space and has mass.
space
The room that matter takes up.
evidence
An observation or result that supports an idea.
compress
To press something into a smaller space.

Differentiation

  • Allow pointing before speaking.
  • Use sentence frames: Air takes up ___; I know because ___.
  • Read prompts aloud.
  • Let students handle only safe plastic materials.
  • For extension, compare how a balloon changes when different amounts of air are added.

Assessment

  • Check whether students distinguish invisible from nonexistent.
  • Check whether claims include an observation.
  • Listen for the idea that air takes up space and can push.

Exit ticket

Name one observation that shows air takes up space.

Extension

Design a new safe air investigation using a balloon, bag, cup, or syringe and identify what you would observe.