Students simulate some of the Pathfinder experiments by devising methods of collecting and measuring magnetic substances in pseudo-Martian soil. The efficiency of each of the methods used to collect materials is evaluated in this lesson.

Pupils formulate their own hypothesis, determine which variables are important to test their hypothesis, design an experiment in which they collect data. They utilize instruments and tools to measure, calculate, and organize data.

Students discover that science relates to everyday life and see testing procedures used in an industrial laboratory. Students compare various brands of household and industrial floor polishes for specific criteria.

Fourth graders investigate the contents of various types of soil to determine the differences in salinity levels. They conduct an experiment of observing the plants in the different soils. Students then determine survival rates by...

Students discuss the demands on the rainforest and devise a management plan that satisfies competing uses. They then construct a diorama to show the location of the various sites.

Students debate over the cutting of rainforests in order to put people to work. They then brainstorm ways it may be possible to provide jobs for people and to preserve the rainforest.

Fourth graders, in small groups, observe plants and note their characteristics. After drawing pictures of the plants, including their roots systems, they hypothesize in which environments the plants would best thrive. Finally, 4th...

Students monitor streams, take stream surveys, collect chemical and macro-invertebrate and stream discharge data. Using a digital camera, students observe the percentage of various types of vegetation on the flood plan, riparian area and...

Students investigate air by participating in a class experiment. In this matter measurement lesson, students identify air as a gas which consists of mass. Students utilize a windsock or balloon to measure oxygen and explore it's true...

Learners investigate the process of hydroponic agriculture. They grow beans in different hydroponic solutions, compare results and graph their observations.

Students investigate how earthworms help build good soil. They examine the worms carefully to find the ringlike segments and swollen band at the front of the earthworm's body. Students take turns dampening the soil every day and adding...

Learners explore the process of decomposition. In this science lesson, students carve a pumpkin and observe as it decomposes. Learners compare the changes to an uncarved pumpkin. Students write about the disappearing pumpkin.

Learners engage in a activity which demonstrates the importance of rocks, soils and minerals in engineering and how using the right material for the right job is important. The students build three different sand castles and test them...

Students explore the impact natural events have on the environment, specifically the wetlands. They view a video about the impact of Hurricane Katrina on the Mississippi Delta and answer discussion questions.

Students are introduced to the on-farm nutrient cycle, which explains feed to manure, to soil, and back to the feed. They are introduced to the generation of runoff during rainstorms, and the contents of runoff water are more than water...

Students investigate earthworms. In this organisms lesson, students observe earthworms in their environment and record their behavior towards light and how they eat. Students continue on a month long observation.

Fourth graders experiment to determine how overpopulation effects ecosystems specifically plants. In this ecosystem activity, 4th graders conduct an ecosystems experiment after listening to Claire Daniel's, Ecosystems. They watch a...

Students examine how to grow plants using a hydroponic system.  In this hydroponics lesson students identify the advantages and disadvantages of growing plants hydrologically.

Fourth graders make predictions, observe, collect and record data. They investigate several soil and worm websites. Finally, 4th graders write a letter to The President which defends earthworms by explaining their value to the United...

Fourth graders investigate the process of water erosion. They observe the roots of a plant and discuss the concept of erosion. Next, in small groups they conduct an experiment to observe how water erodes soil on a stream table, and...

Students explore the process of decomposition in plants. For this plant biology lesson, students use a cleaned out pumpkin and observe how the decomposition process takes place. Students write down adjectives to describe the pumpkin.

Second graders investigate rice farming. In this farming equipment lesson, 2nd graders discover what type of equipment is needed to get rice farms ready to plant. Students gain knowledge about what a combine does and how it is important...

Learners explore cycles in nature. In this cross curriculum agriculture lesson, students define "cycle" and research weather and planting folklore. Learners make a bracelet in which individual colored beads represent the many "cycles" of...

Students simulate the search for water in Mars using simple apparatus. In this space science lesson, students explain how soil temperature affects the cooling of probes. They graph the data collected from the simulation.