Science · Year 1

Active learning ideas

Material Properties: Waterproof and Absorbent

Active testing lets Year 1 students connect abstract ideas to tangible experiences, turning observations of beads and soaks into lasting memories. When children handle real samples and see water behave differently, the difference between waterproof and absorbent stops being words and starts being evidence they can trust.

• National Curriculum Attainment Targets
• KS1: Science - Everyday materials

• 20–45 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Stations Rotation
• 45 min · Small Groups

Stations Rotation: Water Drop Tests

Prepare stations with materials like tissue, foil, cotton, and plastic. Students drop water from a dropper, time absorption or repulsion, and record with tick charts. Rotate groups every 7 minutes for all tests.

Explain why some materials are waterproof and others are not.

Facilitation Tip

During Station Rotation, place identical droppers and wipe cloths at every table so students focus on the material, not the tool.

What to look for

Provide students with three small samples of different materials (e.g., plastic wrap, paper towel, fabric swatch). Ask them to predict if each will be waterproof or absorbent, then test with a few drops of water. Have them record their observations with simple drawings or words.

• Remember
• Understand
• Apply
• Analyze
• Self-Management
• Relationship Skills

Activity 02

• Plan-Do-Review
• 30 min · Pairs

Pairs: Fair Test Challenge

Pairs select two materials, predict outcomes, then test by adding equal water drops on identical samples. They swap results with another pair and discuss fairness. Extend by grouping materials.

Compare materials that absorb water to those that repel it.

Facilitation Tip

During Fair Test Challenge, ask pairs to swap roles after one test so each child pours and records.

What to look for

Show students pictures of a raincoat, a sponge, and a plastic bag. Ask: 'Why is this material waterproof?' or 'Why is this material absorbent?' Encourage them to use the new vocabulary to explain the material's properties and its use.

• Remember
• Apply
• Analyze
• Self-Management
• Decision-Making
• Self-Awareness

Activity 03

• Plan-Do-Review
• 25 min · Whole Class

Whole Class: Use-Matching Sort

Display tested materials and pictures of uses like umbrellas or towels. Class votes and sorts into waterproof or absorbent piles, justifying choices. Record on a shared chart.

Design an experiment to test if a material is waterproof.

Facilitation Tip

During Use-Matching Sort, have students place their matched pictures on a class Venn diagram to highlight overlaps and differences.

What to look for

Give each student a small piece of paper. Ask them to draw one item that needs to be waterproof and one item that needs to be absorbent. Under each drawing, they should write one word describing the material's property (waterproof or absorbent).

• Remember
• Apply
• Analyze
• Self-Management
• Decision-Making
• Self-Awareness

Activity 04

• Plan-Do-Review
• 20 min · Individual

Individual: Prediction Sheets

Each student draws three materials, predicts water behaviour, tests alone, then colours results. Share one surprise in a circle talk.

Explain why some materials are waterproof and others are not.

Facilitation Tip

During Prediction Sheets, model a think-aloud for the first sample so students see how to link prediction to observation.

What to look for

Provide students with three small samples of different materials (e.g., plastic wrap, paper towel, fabric swatch). Ask them to predict if each will be waterproof or absorbent, then test with a few drops of water. Have them record their observations with simple drawings or words.

• Remember
• Apply
• Analyze
• Self-Management
• Decision-Making
• Self-Awareness

A few notes on teaching this unit

Start with a quick story about a soggy sock versus a dry umbrella to create an emotional hook, then let the materials do the teaching. Avoid long explanations; instead, prompt students to compare what they see with what they predicted. Research shows that when Year 1 learners articulate their observations aloud and hear peers confirm or challenge them, misconceptions fade faster than when teachers explain first.

By the end of the station work, every child will confidently point to a material and say whether it repels or absorbs, using simple vocabulary like bead, soak, and drip. They will also match the property to a real object because they have tested and discussed it themselves.

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Watch Out for These Misconceptions

• During Station Rotation, watch for students who assume that shiny materials are always waterproof.

  Place both foil and shiny paper at one station, have students drop water on each, and ask them to describe the bead on foil versus the immediate soak on paper. Prompt them to compare appearance to evidence before they move on.

• During Fair Test Challenge, watch for students who say absorbent materials drink water like people.

  Ask pairs to look closely at the paper towel sample while water soaks in, then sketch the fibres with arrows showing water filling the spaces. Label the arrows so students see water moves between fibres, not into a mouth.

• During Use-Matching Sort, watch for students who believe thicker items are automatically waterproof.

  Include a thin plastic bag and a thick cloth square in the mix. Ask students to place each in the correct circle and explain why thickness alone does not decide the property, using the evidence from their tests.

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Methods used in this brief

• Stations Rotation
• Plan-Do-Review