Ducks and Their Oily Feathers

The video tutorial introduces a science experiment to understand why adult ducks have oily feathers. It begins with an introduction to ducks and their feather types, followed by a detailed setup of the experiment, including materials needed. The procedure involves applying oil to one of two paper ducks and observing the effects of water on both. Predictions are made about the outcome, and observations reveal that oil causes water to bead up, keeping the duck dry. The conclusion explains that oily feathers help real ducks stay dry in water.

What is the main question the science experiment aims to answer?

• Why do ducks have webbed feet?

• Why do ducks migrate?

• How do ducks find food?

• Why are adult ducks' feathers oily?

Which of the following is NOT a material needed for the experiment?

• Vegetable oil

• Brown paper bag

• Glue

• Cotton balls

What is the first step in the experiment procedure?

• Draw a pond

• Cut out two paper ducks

• Mix oil and water

• Apply oil to both ducks

Why is oil applied to only one of the paper ducks?

• To make it fly

• To see how it affects water absorption

• To change its color

• To make it heavier

What should you do before adding more water to the ducks?

• Make a prediction

• Add more oil

• Cut out more ducks

• Draw a picture

What happens to the water on the duck with oil?

• It beads up and stays on top

• It evaporates quickly

• It soaks through the paper

• It changes color

What is the main observation when water is applied to the non-oily duck?

• The water soaks through

• The duck floats

• The water beads up

• The duck changes color

How do oily feathers help real ducks?

• They help ducks fly

• They keep ducks dry

• They attract other ducks

• They make ducks swim faster

What is the conclusion of the experiment?

• Oily feathers help ducks fly

• Oily feathers change the color of ducks

• Oily feathers make ducks heavier

• Oily feathers help ducks stay dry

What is the role of oil in the experiment?

• To change the color of the paper

• To prevent water from soaking through

• To make the paper ducks fly

• To make the paper ducks heavier