Learners 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 participate in an online lesson to reinforce the similarities and differences in plants and animals. They classify living things according to observable characteristics.

Students participate in an online lesson showing that gases are formed when liquids evaporate and that when a gas is cooled, it condenses to form a liquid, and gases move and flow more easily than liquids, and how gases differ from solids.

Students participate in an online lesson to investigate the effects of cooling and heating on water.

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

Students examine how micro-organisms are living organisms that are often too small to be seen. They explain that micro-organisms may be beneficial or harmful.

Pupils ask questions that can be investigated scientifically. They determine how to plan a fair test by changing one factor while keeping other factors the same, to use measurements to draw conclusions and use scientific knowledge to...

Students participate in an online lesson to explain how to make bulbs brighter or dimmer in a series circuit by changing the number or type of components.

Students practice sorting living things into groups using their characteristics. Using pictures of leaves and animals, they sort them based on their color and shape and write the objects characteristics under the picture. They share...

Young scholars place words describing a range from cold to hot on a scale. Using those words, they identify places on Earth which are cold, hot, freezing or boiling. They practice using and reading a thermometer with three different...

Students work with a partner to brainstorm a list of as many human body parts as possible. Using that list, they circle any one of those that are bones. They are shown a model of the human skeleton and practice locating various bones. ...

Students review what the heart does and why the muscles in the body need oxygen. As a class, they measure their pulse rate while they are resting and after they have jogged for three minutes. They are helped by their teacher to convert...

Students feel and observe different types of materials. Using the internet, they sort objects based on the materials they are made from and justify their reasons for putting it in a certain category. They identify objects that could...

Pupils identify how the pitch of an instrument can be altered. They complete a worksheet by labeling several images in order of pitch and then fill a bottle with water to create a sound that matches a pitch on a drawn card.

Students participate in a whole class discussion about solids, liquids, and gases. Students get involved in a teacher-directed experiment related to solids, liquids, and gases. Students complete worksheet, writing the names of the parts...

Learners identify the changing states of water, water vapor and ice in the water cycle They investigate how each of these stages can be reversible. Students complete a worksheet describing the water cycle.

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 measure and record the mass of the nut to be tested to the nearest 0.01 gram.

Young scholars examine how to plan for prudent use of trees so that we never run out of this natural resource. They determine what the oldest wooden object in their home is and draw picture of it. They observe a cross section of a tree...

Students discuss why it is important to be safe while they are home alone. They decide if decisions made in skits they watch were good or bad. They even create their own role plays.

Students investigate the effect of different container materials on heat transfer; draws a conclusion about the best insulator; and applies concept to a new, seemingly quite different problem.

Students assess the positive and negative affects of humans on the environment. The lesson explores ways in which individuals and societies can reduce the negative impact on the environment. By taking a "waste walk" around their campus,...

Discusses photovoltaic energy systems and their many applications, e.g., in telecommunications, consumer products, space technology, solar lights, etc.

Inventor Nikola Tesla is the subject of this extensive PBS site. In addition to information on Tesla's life and work, the site offers insight into the ways in which society and invention affect each other.