Science

Discoveries, experiments and the people asking big questions.

Plants do not eat like animals. Using sunlight, water and air, they make their own sugar in a process called photosynthesis.

Seasons are not caused by distance from the Sun. They happen because the Earth is tilted as it travels around it.

Sunlight looks white, but the air scatters its blue light in every direction, which is why the daytime sky glows blue.

Most solids sink in their own liquid, but ice floats. This unusual habit of water keeps lakes alive through winter.