BISCUIT STACK CHALLENGE

Goal:Teams must build the tallest freestanding biscuit tower they can within a time limit using only the supplies provided.

Ideal Group Size:

• 2–5 children per team

• You can run multiple teams at once or rotate in rounds if space is limited

Duration:

• Setup: 5 minutes

• Challenge time: 5 minutes

• Judging + tidy-up: 5–10 minutes

Supplies per team:

• 10–15 plain round biscuits (e.g. Superwine, Arrowroot, Krispie – cheap and stackable)

• Small bowl of icing "glue" (thick mixture of icing sugar and water, or icing sugar and butter)

• Plastic knife or spoon for spreading

• Paper plate or napkin for their base

• Paper towels for cleanup

Optional: Give each team a few bonus items like marshmallows or pretzels to add creativity to their structure.

Set-Up:

1. Pre-portion biscuit sets and icing bowls for each team.

2. Give a quick demo: show how to spread icing and stack safely.

3. Remind kids that the tower must stand on its own with no outside support.

Challenge Rules:

1. Teams have 5 minutes to build the tallest possible freestanding tower.

2. Only use what’s provided — no licking, biting, or extra glue.

3. Hands must be off the tower once the timer ends.

4. If it falls during judging, the height before the fall is recorded.

Judging Criteria:

• Height (use a tape measure or ruler)

• Creativity (optional bonus points)

• Teamwork (bonus points for collaboration)

• Optional fun awards:

  • Most Wobbly but Still Standing

  • Tiny but Mighty

  • Best Use of Icing

Prizes/Certificates Ideas:

• Tallest Tower Trophy (e.g. made from cardboard and foil)

• Biscuit Builder Champion certificate

• Bonus treat or sticker

Clean-Up Tips:

• Have a bin nearby for scraps

• Provide wipes or a bowl of warm soapy water for hands

• Encourage kids to help wipe tables and return tools