Science, Maths & Technology
The search for water on Mars
...simple experiment. Activity 2: Surface tension experiment Timing: 20 minutes You will need: A clean (and detergent free) glass A sewing needle A fork Water If you don’t have these items, you can still learn without carrying out the experiment. Fill your glass with water. Notice the water surface appears ‘thicker’ against the glass. This is because it is slightly...