Question 78
You will need: a glass or clear plastic bowl, a small dish which will fit inside the bowl, water, clear plastic wrap or a sheet of clear plastic and an elastic band, a small stone
- Place the dish inside the bowl.
- Pour some water into the bowl around the dish. The water should be about 1 cm deep. Make sure no water splashes into the dish.
- Put the plastic wrap over the bowl and stick it down. Or put the sheet of plastic over the bowl and hold it down with the elastic band.
- Put the small stone on the plastic. Leave the bowl outside in a warm, sunny place for a few hours.
Describe what you observed in your model after a few hours.
- Place the dish inside the bowl.
- Pour some water into the bowl around the dish. The water should be about 1 cm deep. Make sure no water splashes into the dish.
- Put the plastic wrap over the bowl and stick it down. Or put the sheet of plastic over the bowl and hold it down with the elastic band.
- Put the small stone on the plastic. Leave the bowl outside in a warm, sunny place for a few hours.
Describe what you observed in your model after a few hours.
