💧 Phase 3 - Investigation
🧪 Lab
⏱ 4 minutes
Task 4 - Test 1: Absorbency
Pour 50 ml of water onto each sheet, let it drip, then measure what's left.
🔒 Home Lab safety
Use only water and lightweight materials. Work on a tray, keep a cloth ready, and have an adult nearby. If you don't have the materials, use the Virtual Lab tab.
Step 1 - Choose your lab and record all four results
Pour 50 ml onto each sheet, dip 5 seconds, let it drip 5 seconds, then enter how much water is left (ml) for each product.
Press Dip for each product, watch, then read the measuring cylinder.
Step 2 - Rank best (most absorbed) to worst
1st - 4pts
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2nd - 3pts
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3rd - 2pts
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4th - 1pt
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Sleep, water, food and movement support energy - and now you've measured absorbency with real numbers. On to wet strength.
What happens in Task 4
A 4-minute Phase 3 - Investigation activity. Students choose a Home Lab or Virtual Lab, measure how much water each of four products absorbs, then rank the products from best to worst.
🎯 Learning objectives
To conduct a simple, repeatable comparative product test and to collect and record quantitative data.
♿ SEN Adaptations
- Step cards with photos; pre-measured water in support mode
- Rankings only - no weighting required in support mode
🖨️ No-Tech Format
- Lab Booklet pages 3-6 with a result table and paper scorecard