Science · Year 1

Active learning ideas

Material Properties: Hardness and Softness

Active, hands-on exploration works for hardness and softness because young learners build understanding through touch and direct comparison. When students manipulate real materials like wood, sponge, and fabric, they connect abstract terms to concrete experiences, which strengthens memory and reasoning about material properties.

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

• 20–35 min
• Pairs → Whole Class
• 4 activities

Activity 01

• Plan-Do-Review
• 35 min · Small Groups

Sorting Stations: Hard or Soft Hunt

Prepare four stations with trays of materials like blocks, cloths, sponges, and plastics. Children sort items into hard or soft categories, then test by pressing or scratching. Groups rotate every 7 minutes, recording one observation per station on sticky notes.

Compare the hardness of different everyday materials.

Facilitation Tip

Before Sorting Stations, model how to press each material gently with a finger to show what a ‘press test’ looks like.

What to look for

Give each student a small sample of a material (e.g., a piece of cardboard, a cotton ball). Ask them to write one sentence describing if it is hard or soft and one reason why, using the word 'scratch' or 'press'.

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

Activity 02

• Plan-Do-Review
• 25 min · Pairs

Prediction Challenge: Tower Test

Pairs select from hard materials like wooden cubes and soft ones like foam. They predict which builds the tallest stable tower, construct it, then gently shake to test. Pairs explain choices to the class.

Explain why we use hard materials for some objects and soft for others.

Facilitation Tip

During Prediction Challenge, remind students that predictions are guesses, not facts, and that testing will reveal the truth.

What to look for

Hold up two different objects, one made of a hard material (like a wooden block) and one of a soft material (like a sponge). Ask students to point to the object made of the harder material and explain one way they know it is hard.

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

Activity 03

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

Resistance Relay: Scratch and Press

Set up a relay course with material samples. Each child tests one by scratching or pressing, notes if it changes, then tags the next. Whole class discusses patterns at the end.

Predict which material would be best for building a strong tower.

Facilitation Tip

In Resistance Relay, assign each pair one scratch tool (e.g., fingernail, coin) to ensure consistency in testing.

What to look for

Present a scenario: 'We need to build a small bridge for toy cars. Which materials from our table (show samples of hard and soft materials) would be best to use for the bridge deck? Why?' Encourage students to use the terms 'hard' and 'soft' in their explanations.

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

Activity 04

• Plan-Do-Review
• 20 min · Individual

Material Match-Up: Purpose Pairs

Individuals match pictures of objects to hard or soft material cards, then test real samples to verify. They draw and label one match with a reason why it suits the purpose.

Compare the hardness of different everyday materials.

Facilitation Tip

For Material Match-Up, provide actual objects (e.g., a wooden spoon, a felt square) so students connect materials to real-world uses.

What to look for

Give each student a small sample of a material (e.g., a piece of cardboard, a cotton ball). Ask them to write one sentence describing if it is hard or soft and one reason why, using the word 'scratch' or 'press'.

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

A few notes on teaching this unit

Teach this topic by letting students test materials before defining terms. Start with open exploration so children notice differences naturally, then introduce precise language like ‘hard’ and ‘soft’ to describe what they feel. Avoid rushing to definitions before hands-on experience, as this undermines curiosity and evidence-based reasoning. Research shows that allowing children to articulate their own observations first leads to deeper understanding.

Successful learning looks like students accurately sorting materials by hardness or softness, using evidence from pressing, scratching, or bending tests. Children explain their choices with words like ‘resist,’ ‘dent,’ or ‘bend,’ showing they can apply the concepts beyond the activity.

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Watch Out for These Misconceptions

• During Sorting Stations: Watch for students who place all hard materials in one group simply because they feel rigid, without testing for scratches or dents.

  During Sorting Stations, guide students to test each material by pressing and scratching it with their fingernail or a coin. Ask, ‘Does it bend? Does it leave a mark?’ to help them notice that some hard items like chalk break easily.

• During Prediction Challenge: Watch for students who assume tall towers must be made from hard materials only.

  During Prediction Challenge, have students test each material by stacking it and gently tapping the tower. Ask, ‘Did it stay up? Did it bend or dent?’ to show that soft materials can support weight if shaped properly.

• During Resistance Relay: Watch for students who confuse hardness with thickness or weight, saying a thick sponge is hard.

  During Resistance Relay, focus students on the scratch and press tasks using the same tool (e.g., a fingernail) for all materials. Ask, ‘Does the sponge resist scratching or pressing?’ to clarify that softness means giving way, not heaviness.

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Methods used in this brief

• Plan-Do-Review