Scientific Contributions and Discoveries

The video features bedtime stories about famous scientists. It begins with Cecilia Payne-Gaposchkin, who discovered the sun's composition. Next, it covers George Washington Carver's agricultural innovations, followed by Charles Darwin's theory of evolution. Finally, Ariel Waldman's Antarctic expedition explores extremophiles, showcasing the diversity of life in extreme environments.

What did Dr. Cecilia Payne-Gaposchkin discover about the sun?

• It is made mostly of carbon.

• It is made mostly of oxygen.

• It is made mostly of hydrogen and helium.

• It is made mostly of iron.

What was one of the main challenges Cecilia Payne faced in her career?

• Her work was not published.

• Being a woman in a male-dominated field.

• Lack of funding for her research.

• Not having access to a telescope.

What agricultural problem did George Washington Carver help solve?

• Insect infestation in crops.

• Soil depletion from continuous cotton planting.

• Lack of water for crops.

• Overproduction of wheat.

How did George Washington Carver suggest improving soil health?

• Burning old crops.

• Irrigating fields more frequently.

• Planting peanuts to replenish nitrogen.

• Using chemical fertilizers.

What was Charles Darwin's role on the HMS Beagle?

• Naturalist observing plants and animals.

• Captain of the ship.

• Navigator of the journey.

• Cook for the crew.

What did Darwin observe about species on the Galapagos Islands?

• They were identical to species in England.

• They had unique adaptations to their environment.

• They were all the same species.

• They were all extinct.

What is an extremophile?

• A type of bacteria that causes disease.

• An animal that lives in extreme environments.

• A large mammal found in Antarctica.

• A plant that grows in tropical climates.

What did Ariel Waldman find living under the ice in Antarctica?

• Tardigrades and diatoms.

• Seals.

• Polar bears.

• Penguins.

Why are extremophiles important to study?

• They are a major food source for humans.

• They are used in traditional medicine.

• They are the largest organisms on Earth.

• They provide clues about potential life on other planets.

What did Ariel Waldman use to explore the ocean under the ice?

• A diving suit.

• The ObTube.

• A submarine.

• A kayak.