Step 1: Mix corn flour and water in a 2:1 ratio in one bowl. Fill the other bowl with water.

Keep mosquitoes and their bites at bay with Brainwave’s easy and effective homemade repellent.

List of ingredients

• 10ml Eucalyptus oil (Rs 20)
• 200ml sunflower oil (from your kitchen)
• A small funnel
• A sprayer

This month, we’ll show you how a real windmill points itself at the wind to keep spinning. This doesn’t happen with handheld paper fans (the ones the roadside balloon guy sells), which stop spinning when the wind direction changes.

You will need:

Metal wire, a pin, a flat rock (or any hard, flat and heavy object), chart paper, sticking tape, broomsticks, an empty toothpaste box.