Suggested ages 6–10

Science lab and mini inventors

Choose adult-led demonstrations and a challenge to invent something useful or wonderfully silly.

Main activity: Sketch and present a new invention

Plan the party

Make it work: Test demonstrations ahead of time. Adults handle materials; use age-appropriate instructions and protect surfaces.

Age fit: ages 6–10
Prep estimate: 60–90 min
Mess / space: Moderate; protect tables · 3 seated team work surfaces
DIY budget example: $150 example target · 12 children; see assumptions

Plan for 12 children

An editorial worked example, not a tested capacity or venue quote. Includes the birthday child; count attending adults separately. Adapt to your guests and check product labels.

Run the activity: Three teams of four design an invention on paper, make a cardboard model and give a one-minute pitch. This plan uses no chemical experiments.
Quantities and materials: Provide 12 sketch sheets, 3 clean boxes, 3 glue sticks, paper scraps and 3 marker/crayon trays. Offer pre-cut shapes and adult help with cutting.
Space and adult roles: One adult supports making and one handles arrivals and food. Test materials first and keep craft supplies away from snacks.
Buy, borrow or skip: Borrow markers and boxes. Demonstration kits or visiting entertainers are a different plan: choose age-labeled materials and obtain a provider quote.
Budget assumptions: Example allowance: $65 snacks/drinks, $25 cake, $20 tableware, $20 craft supplies, $20 buffer = $150. Venue, adult food and science entertainers are extra.

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Shopping list for Science lab and mini inventors

Shopping list for 12 children · 4 picks

The main plan stays chemical-free: sketch an invention, make a cardboard model and present it. A demonstration kit is a separate optional ages-8+ plan.

Paid links. As an Amazon Associate I earn from qualifying purchases.

For the party planCrayola construction paper, two-pack on Amazon (paid link)
Quantity: Use 24–36 sheets from one two-pack, or your existing paper.
Use 12 sketch sheets plus colored scraps for three team models.
Before you buy: Manufacturer minimum age 3. Adults prepare toddler decorations. Paper is not food-contact wrapping; use child-safe cutting tools with supervision.
For the party planCrayola washable markers on Amazon (paid link)
Quantity: One 40-marker box split into three shared trays.
Three shared trays for invention plans, diagrams and labels.
Before you buy: Ages 3+. Work on ordinary paper. Protect the craft surface and recap after use; some feedback mentions drying.
For the party planElmer’s washable purple glue sticks, 12-pack on Amazon (paid link)
Quantity: Use three sticks from a 12-pack for three teams.
Join paper and lightweight cardboard; adults handle cutting and stronger joints.
Before you buy: Check package age instructions, supervise use and keep caps out of younger children’s reach. Adults handle cutting; not food decoration supplies.
Optional extraNational Geographic Science Magic kit on Amazon (paid link)
Quantity: One adult-led demonstration kit, only if every participating guest is 8+.
Optional alternative to the core plan. Test the chosen instructions and consumable quantity; not 12 individual experiments.
Before you buy: Ages 8+. Not suitable for the younger end of this theme. Adults follow instructions, handle materials and test a demonstration before the party.

Bring from home or buy locally: Three clean boxes and pre-cut model parts · Three protected work surfaces and adult scissors · Meal/cake tableware, cups and food kept away from craft materials · A folder per guest for invention sketches · Cake or other birthday treat, allergy-checked snacks and drinks · Adult food and settings counted separately

How we chose these supplies

This section contains paid links. Weekend Wild may earn a commission when you buy through them. As an Amazon Associate I earn from qualifying purchases.

Supplies researched on October 3, 2026, selected for party usefulness, pack contents, age fit and customer feedback. Most had 4.7–4.9-star ratings when checked; newer character bundles have fewer reviews. These are researched suggestions, not hands-on tests or an exhaustive highest-rated Amazon ranking. Feedback can combine variants and ratings change. Open a theme’s shopping list for quantities; borrow first and check the selected pack on Amazon.

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Science lab and mini inventors

Plan the party

Plan for 12 children

Shopping list for Science lab and mini inventors

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