Spider With an Air Bubble

In the picture

1. 1Badge 1 sits on the silvery air film on the spider’s body hairs at the water surface.
2. 2Badge 2 sits on the silk threads holding the air dome between the plant stems.
3. 3Badge 3 sits on the shiny dome-shaped air bubble.
4. 4Badge 4 sits on the spider resting inside the air dome.

Examples

• A scuba tank gives a diver air to breathe underwater.
• An upside-down glass in water can hold a pocket of air.

Quiz: Spider With an Air Bubble (Age 10)

1. 1

   How does this spider get air while it is underwater?

   • It traps air on its body hairs and keeps an air bubble in silk.
   • It takes in oxygen from the water through its skin.
   • It swims to the surface every few seconds to breathe.
2. 2

   What is the job of the silk in the spider’s underwater home?

   • It holds the air bubble in place between the plants.
   • It catches small fish for the spider to eat.
   • It makes the water around the spider warmer.
3. 3

   Why does the spider have air trapped on its hairy body?

   • The trapped air is part of how it breathes underwater.
   • The trapped air makes it look bigger to predators.
   • The trapped air helps it move faster through water.

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.