Viewer Mail! - How Do Bugs Hang Upside-Down?

The video tutorial addresses two science questions. The first question, from Kelsey, explores why running uphill is harder than running downhill, explained through the concept of gravity and forces. The second question, from Matty, investigates how insects can climb walls and remain upside down, highlighting their special adaptations like claws, hairs, and sticky substances that help them adhere to surfaces.

What is the main reason it's easier to run downhill than uphill?

• The wind helps push you downhill.

• Gravity assists your movement downhill.

• Your muscles are stronger when going downhill.

• The ground is smoother downhill.

Which force is constantly acting on us, pulling us towards the ground?

• Electricity

• Gravity

• Friction

• Magnetism

Why do we get tired faster when running uphill?

• Our shoes wear out faster uphill.

• The ground is uneven uphill.

• We have to work harder against gravity.

• The air is thinner uphill.

How do some insects manage to climb walls?

• They are immune to gravity.

• They have special body parts like claws or hairs.

• They use suction cups on their feet.

• They have wings that help them fly up.

What helps some insects stick to walls without falling?

• Their ability to fly

• A magnetic field

• Their lightweight bodies

• An oily liquid they produce