EVERYDAY SCIENCE - ADAPTATIONS
Question 1
Ace and Bob went to a park for a jog one morning. They saw some swans swimming gracefully at the lake. Bob also found a feather that had fallen off one of the swans.
Fill in the blanks with the keywords provided below.
a) Name a structural adaptation that allows the swan to fly better. Explain how the adaptation helps the swan to fly.
Answer:
The
With less friction between the body and the air, less kinetic energy is converted into heat.
As a result, the swan is able to fly further with less energy.
b) Name a structural adaptation that allows the swan to swim better. Explain how the adaptation helps the swan to swim.
Answer:
The
As the feet push against the water, the water pushes back and propels the swan forward.
c) The diagram above shows the structure of the swan’s feather that Bob found. How does the outer and the inner part of the feather keep the swan warm during winter?
Answer:
The outer part of the feather is
The inner part of the feather is fluffy, trapping a layer of
Air is a
“Some swans paddle with only one leg, tucking the other one under the wings.”