Build a Classroom Science Kit on a Budget: What to Buy, What to Borrow, What to Skip
By Ahmed, founder
You don’t need a lab to teach good science. A modest kit, a recycling bin and a few pantry staples cover most elementary and middle school experiments. Here’s what’s worth having.
Core tools (buy once, use all year)
- Measuring tapes and metre sticks, enough for each team
- Rulers with millimetre marks
- Kitchen scale that reads to 1 g (0.1 g is better)
- Thermometers, alcohol-filled or digital probes (never mercury)
- Measuring cups and spoons, with millilitre markings
- Stopwatches or timers (a classroom clock or phone works)
- Hand lenses (5× to 10×)
- Safety goggles, one per student if you can
- Magnets, ceramic or fridge types
- Flashlights and a lamp without a shade
- Clear plastic cups, trays and zip-top bags
Consumables (restock each term)
- Vinegar, baking soda, salt, sugar, cornstarch, flour
- Vegetable oil, dish soap, food colouring
- Tape: masking and clear
- Paper clips, elastic bands, string, yarn, straws
- Paper: printer paper, cardstock, coffee filters, paper towels
- Aluminium foil, plastic wrap
- Batteries (AA), small bulbs and wire, if you’re doing circuits
- Gloves, paper towels and wipes for cleanup
Recycled and found items
Ask families to send in: clean plastic bottles and tubs, cardboard, egg cartons, newspaper, bubble wrap, old socks, jars with lids and shoeboxes. Keep a collection box in the room.
Borrow, don’t buy
- Balance scales or force meters from another class
- Microscopes (if needed) from the secondary school
- A projector, tablets or phones for timing and photos
What to skip
- Expensive “science kits” with single-use items you can replace with household materials
- Glassware, when plastic will do
- Anything you won’t use more than once a year
Plan costs by lesson
Many of our lessons list their cost for a class of 30. A lot are roughly $5 to $25, mostly consumables, and call out any special equipment so you can plan. Check the materials list before you teach and gather in advance.
Storage
Keep one tub per team with the tools they use most: ruler, tape, scissors, cups, markers. It saves minutes in every lesson. Label shelves so students can help restock.
Safety
Store chemicals, even household ones, out of reach, label everything and follow your school’s rules about what you can bring in. Hazard notes in each lesson will tell you where to be careful.
Start here
Look through Why does a ball stop rolling? for a very low-cost example, or browse the library for materials and costs. Sign up for three lessons free.