Early-Years Science: Floating and Sinking

Early-Years Science: Floating and Sinking 17 May 2020 Setup time: ~5mins
Run time: 15-30mins
Age range: 3+

Goals

Investigate why things float or sink.
Introduce the idea of formulating and testing hypotheses.

You will need

  • 1 large, waterproof container. E.g. a bucket, basin, or watertight box. A bath or sink will also work fine.
  • A variety of objects of different shapes and sizes, and made out of different materials: stone, metal, plasic, wood. E.g. metal, plastic and wooden spoons of similar sizes; different size spoons; metal and plastic bottle tops; stones; corks; matchsticks.
  • Plasticine or play-dough.
  • A small plastic tub that fits in the big container.

Early-Years Science: Cress-Growing

Early-Years Science: Cress-Growing 29 April 2020 Setup time: ~1/2h
Run time: 1-2 weeks
Age range: 3+

Goals

Investigate what seeds and plants need to grow.
Introduce the basic idea of a controlled trial.

You will need

  • cress seeds
  • 4 trays (plastic food trays are perfect - remember to wash them throughly first!)
  • 2 cardboard boxes (big enough for the trays to fit in)
  • 4 pieces of kitchen roll, or enough cotton wool to line each tray