🔍 Discover🔬 STEM
💧 Sealed Water Bag
Water they can squish without a single drop escaping.
Ages
0–2
Duration
10 min
Cost
Free
👶 Kid challenge
Easy
🧑 Parent energy
Hands on · 3 min prep
⚠️ Safety first
Stay within arm's reach. Tape the bag down, check for leaks, and put it away straight after — bags are a suffocation risk.
You know your child best — supervise the whole time and skip anything that isn't right for them. See our Terms.
Why this is good for your child
- ✓Touch
- ✓Cause and effect
What you need
Zip bagWaterStrong tape
How to do it
- 1Half-fill a zip bag with water and a few drops of colour.
- 2Seal it and tape every edge down to the floor.
- 3Let them press, push and chase the bubble.
How it actually goes
The honest version — including what "going well" looks like at this age.
- ⏱ 30-second set-up
- Thirty seconds: put zip bag, water, strong tape on a tray or a clear bit of floor, and sit down next to it before you call them over.
- 🧑 What you do
- Show it once, slowly, without talking over yourself. Then hand it over and stop helping unless they ask.
- 👶 What they do
- Touch, shake, sort and compare until it makes sense to them.
- ✅ What success looks like
- Under 1, watching, mouthing and batting at it is the whole activity. Two minutes of real attention is a good session.
- 🧺 How to put it away
- Everything back into one basket or tray, carried back to its spot by them. Naming the spot out loud is what makes it stick.
- 📈 When they outgrow it
- Older? Add a blindfold or a guessing round — same thing, harder.