Leaves fall off the tree in the autumn, but why do they change colors? The interactive covers the role of chlorophyll and photosynthesis. It also explains both carotenoids and anthocyanins.

Do predators look for different things in different seasons? The quick interactive shows how some species survive longer in one season than another based on the conditions. The challenge questions encourage pupils to demonstrate that...

Test the class's knowledge of the key components of climate change. A 10-question online quiz asks learners about weather, climate, greenhouse gases, and several other concepts related to climate change. Interactive and easy for...

Before iPhones and calendars, how did humans determine the seasons of the year? Middle school scientists discover how to use shadows to determine the time of year in an enlightening interactive. Pupils manipulate the sun and examine the...

Use this during the season of teaching about the seasons! As Earth revolves around the sun, its tilt causes the weather to change. The graphics in this presentation show how Earth's position in space has an effect on the angle of...

For this energy worksheet, students click on the links in the questions about energy to find the answers to the questions and then come back and answer the questions. Students answer 12 questions total.

For this online/interactive crossword worksheet, students read clues and solve the puzzle using words about the autumn season. Students type 21 word answers and check them by observing the color of their answers-yellow indicates a...

In this phytoplankton worksheet, students read and study online information on plankton blooms to answer 8 short answer questions about the topic.

In this biomes worksheet, students use an on line source to complete a table of the Earth's biomes. Students include the types of plants in each biome, the types of animals, the climate and any details about the biomes. Students answer...

In this weather worksheet students complete an interactive activity on El Ninos then answer a series of short answer questions on how they occur.