Students define the words "reversible" and "irreversible." They complete a worksheet that shows a number of changes. Students must decide which are reversible and which are irreversible.

Students discuss and investigate how various vehicles move. In a small groups, students then create a wheeled vehicle and find a way to make it move using various resources provided by the teacher.

Students learn to understand the role of both skeletons and exoskeletons. For this lesson on exoskeletons, students locate and label bones on diagram of a human skeleton, and observe and discuss bones of chicken and fish. Students then...

Learners identify healthy foods. In this nutrition lesson plan, students review the five food groups and categorize healthy and unhealthy foods on a chart. Learners develop their own menus.

Learners recognize the different types of plants and animals living in a local environment. They determine how they require different habitats to live, and relate simple life processes to plants and animals found in local environments.

Learners form an understanding that there are many different types of sound. The core concepts are presented in the most basic form for elementary school. Also students investigate how sound travels.

Students practice sorting and classifying objects. In groups, they choose a variety of materials and describe how each one looks and feels. They must agree on how to classify each object and share their groupings with the class. They...

Students discuss the properties of solids and liquids. They complete a worksheet to show the boiling and melting points of several substances and consider if these factors affect how humans use materials.

Students investigate cause and effect and compare and contrast how recurring cycles are evident in multiple aspects of their education. They answer questions in the chosen field. Students model each aspect by interpreting, perceiving and...

Seventh graders describe and conduct an experiment that identifies the physical properties of light. They explore sources of visible light and an electromagnetic spectrum. Students explain the conversion of one form of energy to another.

In this angles of elevation and depression worksheet, 10th graders solve 4 word problems that are related to determining the angles of elevation and depression. First, they define angle of elevation and angle of depression as used in the...

Students investigate questions centered around force and motion by going through the scientific process and creating fair tests and experimentation. In this instructional activity about forces-in-action, students diagram their findings...

Students compare and contrast the movement of objects on different surfaces, experimenting with friction and forces of motion. This friction lesson has numerous online tools including worksheets and virtual activities; the option is also...

Students know that humans and some other animals have bony skeletons inside their body. They know that other animals have skeletons on the outside of their bodies. They explain the role of both kinds of skeletons.

Students explore animal diets and teeth. In this animal science lesson, students view photos of animals and their teeth. Students identify the type of diet the animal has based on the teeth. Students are introduced to the terms...

Students discover how Aristarchus, a Greek astronomer around 230 BC, used a simple observation of the eclipse of the Moon, plus clever reasoning, to deduce the distance of the Moon. They practice the same calculation technique.

In this moon worksheet, students review the Clementine exploration of the Earth's moon. This worksheet has 8 matching and 14 true or false questions.

In this travel time of light worksheet, students read about the NASA satellites and space probes that transmit radio signals at the speed of light across huge distances. Students solve 3 problems about data transmission from space to...

Demonstrate the lunar cycle to youngsters using flashlights and lollipops. The procedure is somewhat vague, so it will need to be modeled for them before turning them loose to try it. The questions that follow the activity are not...

Second graders respond to language, meanings and ideas in different explanatory texts relating them to personal experiences. They listen to and interact with others. Ask questions and talk about personal experiences in a group.

Students develop problem-solving, observation, and critical-thinking skills. In this early childhood lesson, students explore the topic of the sun as they notice shadows and light.

Students identify how the pitch and the loudness of an instrument can be altered by examining the sounds made by three instruments.

In this eclipses worksheet, students are given diagrams of a solar and lunar eclipse. They fill in each diagram with given terms and color the diagram to indicate the process for each type of eclipse.

This well-designed seasons worksheet has students look at 33 words, circle the words that are associated with winter, and complete 8 sentences by circling the multiple choice words that completes each sentence correctly. Students...