1. Materials for making balance beam: wood chips, plywood, strip plastic, strip iron sheet, cardboard, etc.

2. Materials for making the balance shaft: wood chips, plywood, strip plastic, strip iron cardboard, etc.

3. Materials for making the balance base: foam, colored mud, flower basket mud, large square wood blocks, etc.

4. Materials for making trays: mineral water bottles, bottle caps, etc.

5. Other auxiliary materials: paper, colored pens, glue, inch nails, rulers, candles, strings and screws.

Production method:

1. Cut out two rectangles with wood chips (or cardboard, plywood, plastic strips, etc.). ), drill a hole in the center of the strip-shaped wooden board used as the weighing beam, drill a hole in two thirds of the strip-shaped wooden board used as the main shaft, and connect the two holes together with screws in the vertical direction to make the main shaft and weighing beam of the balance respectively.

2. Drill a small hole at each end of the balance beam and connect the small trays with a string and a handle (if there is no suitable tray, you can cut the mineral water bottle, use the bottom of the bottle as a tray, or use a large bottle cap as a tray).

3. Cut the sawdust (or other materials) into squares, then cut them into squares with foam plastic and stick them on the sawdust, and then stick colored paper around the foam plastic. This part is the basis of balance.