First graders make daily observations about clouds, write in their cloud books, make cloud charts, and make a poem about clouds.

Learners explore earthquakes. They build and test models to see if they will withstand an earthquake. Students explain their reasons for constructing buildings in a particular manner.

Learners examine and compare preserving natural resources and preserving cultural resources. They conduct Internet research on two topics, and write a position paper on whether cultural resources or natural resources are more important...

Students experiment with crystals and polymers and examine their roles in food science.

Students examine what happens to air when it is heated or cooled. They conduct an experiment using bottles and balloons, record and discuss their observations, and write a hypothesis.

Students, in groups, take samples from a creek and keep a field journal on their samples. They also perform tests on their samples.

Learners conduct an experiment to determine if water level is affected by a change in oxygen level or air pressure.

In this life characteristics worksheet, young scholars answer 16 questions about living things, Redi's experiment, basic needs, growth and development.

In this engineering instructional activity, students research engineering and fill in blanks to complete sentences. A reference web site is given.

Students define what population is in their own words. In this biology lesson, students explain different ways to measure population density. They interpret population graphs.

Students view a demonstration that simulates cloud formation. They read a poem about clouds, participate in a class demonstration using warm water and ice and write a paragraph summarizing their observations.

Students identify and count Macroinvertebrates at a Hydrology website.  For this macroinvertebrates lesson students collect, sort and identify Macroinvertebrates.

Learners observe weather patterns, collect data, and make a weather predictions for various locations on a map.

As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to the Earth. This page looks at the Earth and its lithosphere, the chemical composition of the Earth, the structure of the Earth, and more.

Find out about the interior structure of the Earth and the role of seismic waves as they move through Earth's layers. The research details both compositional layers as well as mechanical layers.

Take a look at the Earth from the inside out. This site shows the different layers of the earth with an explanation of the rocks and materials in each layer. Includes a quiz on the structure of Earth.

This is a website not only on the mantle but also about all the layers of the earth.

Explore deep underground and deep in the ocean to discover what lies beneath the surface. Don't stop until the final destination: the core of the Earth.

Create a model to help learn the layers and structures within the Earth. Identify characteristics of each layer of the Earth.

In this activity, students will make observations then construct a "sample" model representation of the Earth's layers. They will compare and contrast the movement and material in each layer explaining the location and what it contains.

What makes the Earth unique? What are the different parts of the Earth? What is the chemical make-up of the Earth? Get the answers to these questions and more on this site from the Australian Museum Online.

This two-part resource explores the vertical structure of Earth's atmosphere. Content details the atmospheric layers, and the relationship between pressure and height in the atmosphere.

As part of the General Chemistry Virtual Textbook, this site examines a variety of topics related to Earth's atmosphere. Topics covered in the overview include structure of the atmosphere, composition of the atmosphere, energy balance of...

Visit an active volcano site to find out the connection between the movement of the Earth's plates and the processes deep within the Earth's interior. [58:23]