How do animals survive in the wild? Read about the different adaptations such as camouflage and self-protection that animals use to survive.

Students estimate how many children in their class it would take to equal the mass of one adult bear. They then weigh and record their measurement on a chart to check their estimate.

Students practice problem solving skills and experimental design. They build a vehicle that can traverse "glacial" ice capable of carrying a specific load and glide smoothly, creating as little effort as possible for the skier pulling...

First graders ponder the question of how plants help their lives. They observe and compare properties of several different plants. Differentiate between living organisms and nonliving objects.

Students examine the effects of packaging decisions and the engineering advancements in packaging materials and waste management. They observe biodegradation in a model landfill.

Students explain what biodegradable materials are and list examples of them. They design, with online partners' feedback and input, a product made of biodegradable materials and develop a marketing campaign to best sell their product.

Third graders use a Slinky, rubber bands, paper, coins and cups to experiment with weight and its relationship to gravity. They discuss their results and develop a consensus on conclusion statements derived from their experiments.

High schoolers identify the different types of friction. In this physics lesson, students explain how weight affects friction. They calculate normal force and coefficient of friction using a mathematical formula.

Fifth graders analyze data using a graphical presentation.

Students investigate what simple machines are and how they work. In this simple machine lesson plan, the students create simple and compound machines and test each machine's ability to perform a task. Students compare simple machines to...

Students explore the concepts of force and effort by observing simple machines. In this physics lesson, students attempt to sharpen a pencil without any help, bite into an orange with their lips curled over their teeth, and other...

Students construct their own galvanometer. In this physics lesson, students explain how it is used to detect electric current. They conduct an experiment to measure how much electricity flows through the circuit.

Students examine the different properties that affect water quality.  In this pollution lesson students play a game, complete a hands on activity and computer lab. 

Young scholars perform an experiment with different types of bird eggs to determine what factors make them strong and able to stay on a cliff without rolling off.

Students list specific boundaries in their school neighborhood and explain their possible purpose. They examine a neighborhood and see what connects us and what divides us. They, in groups, make maps of various neighborhoods and present...

Students investigate Archimedes' Principle and show how it relates to density. In this Archimedes' Principle lesson plan, students experiment with a beaker of water, a Styrofoam "boat" and a weight. They predict what will happen when the...

In this electrical circuit worksheet, learners answer a series of 20 open-ended questions about AC motor circuits.  This worksheet is printable and the answers are revealed online.

Students explain and understand the circulation of air in the atmosphere. They identify that energy can be carried from one place to another by heat flow or by waves, including water, light and sound waves, or by moving objects. ...

In this Arbor Day crossword puzzle, students use a set of 28 clues given at the bottom of the page to complete the puzzle; clues are related to Arbor Day.

Students determine the coefficient of friction for different surfaces. In this physics lesson, students identify the factors that affect friction. They collect data and write a formal lab report.

Sixth graders explore the causes and effects of earthquakes. They also collect and analyze data in graphs. They also use the Internet to research earthquakes

Students create a timeline and reinforce the concepts of past, present and future as well as scale.

Students use simple machines that demonstrate force, friction, work and power. They investigate and explain simple machines.

Students explore spatial sense in regards to maps about the globe. In this maps lesson plan, students label oceans, locate the continents and poles, follow directions, and explain the symbols on a map.