Procedure (Making Sea Water Filterer)
1. Gather all the materials and find an open space such as an empty table or the floor.
2. Open the black mat and put it on the open space.
3. Place the glass cup in the middle of the clear bowl.
4. Pour 250mL of sea water in the bowl. (Avoid pouring it into the cup)
5. Carefully cover the top of the bowl with plastic wrap. Make sure it is tight.
6. Gently place the rock on the centre of the plastic wrap, right above the cup.
2. Open the black mat and put it on the open space.
3. Place the glass cup in the middle of the clear bowl.
4. Pour 250mL of sea water in the bowl. (Avoid pouring it into the cup)
5. Carefully cover the top of the bowl with plastic wrap. Make sure it is tight.
6. Gently place the rock on the centre of the plastic wrap, right above the cup.