In this Mystery, students start to notice changes in the weather.

In this Mystery, students use observations of the four classic seasons to spot patterns and thereby determine the seasons’ order.

In this Mystery, students investigate the effects of rocks tumbling in a river.

In this Mystery, students develop a model of the earth’s surface and use it to discover an important principle about how rivers work.

In this Mystery, students explore the idea that the rock under our feet sometimes contains fossils, and investigate how these fossils reveal changes in habitat through time.

In this Mystery, students explore the effects of natural hazards, such as tornadoes, hurricanes, and dust storms.

In this Mystery, students explore the past and present pattern of where volcanoes exist on the earth.

In this Mystery, students will learn about the types, causes, and dangers of landslides.

In this Mystery, students use estimation and graphing to discover the surprising difference in the amounts of fresh and salt water on Earth.

In this Mystery, students construct an explanation about a surprising phenomenon: the existence of underground water.

How does weather influence our culture, daily life, and mood?

What causes wind? Discover the truth behind the whoosh