[Free Registration/Login may be required to access all resource tools.] A brief explanation of the difference between facts, observation, and opinions. Includes a few questions to check for understanding.

[Free Registration/Login may be required to access all resource tools.] This study guide summarizes key points about the role of observations and experiments in scientific investigation. Includes a few questions to check for understanding.

Explore the theory that animals can learn to comprehend abstract concepts by observing to see if specific animal calls are associated with specific actions. Use scientific observation and record-keeping to collect and analyze data.

Explore the scientific breakthroughs in understanding the genes that control the way we age. Collect your own samples of active nematodes by assembling and using a device called a Baermann Funnel, then observe the behavior of these worms.

Investigate the scientific principles of biospheres, and observe the effects of biological processes on closed systems.

Explore the vocabulary and vocalizations in chimpanzee communications and connect them to emotions. Develop and participate in a field study of animal behavior based on observations and interactions with dogs

Explore the science of sound and the human ear, and explain how this applies to the operation of cochlear implants for the deaf. Observe how structures can be "tuned" to respond to different frequencies.

In this lesson, students can explore the techniques of census and population counting by inferring numbers of a virtual population illustrated within a rectangular sampling grid, and observing the accuracy of the technique in relation to...

Students collaborate to create a drawing or model of what the inside of a mystery tube looks like. The tube has two ropes attached to a ring inside it. Students must use their powers of observation and deduction to try to understand how...

Use this activity to model how scientists use indirect observations to define problems that are not directly measurable.

For this Grade Two performance task, students observe the contents of a terrarium and explain the purpose of the water, rocks and soil inside it.

A lesson where young scholars take copies of their shoe prints, then create a story and illustrate it with pictures showing trails of footprints. Presented are samples of such trails that can be used to stimulate class discussion, and to...

Investigate problem-solving techniques by using observation and data analysis skills. Observe how different people solve the same puzzle and make conclusions about how humans and animals think.

Emulate the work of a naturalist by making observations of wildlife in local parks. Record field notes, including drawings, photographs, and observations of behavior, on a particular animal or habitat.

Explore the streamlined shapes of submarines and design an effective hull shape. Observe how streamlining affects a vehicle as it is pulled through a water-filled trough.

Evaluate the effectiveness of snails as a biological control to combat the spread of an alien alga in the Mediterranean. Grow and culture algal "mats" on microscope slides to observe the grazing behavior of pond snails.

Learn how to think like a scientist.

Investigate the use of stroboscopic disks to study actions that are too fast for the naked eye, and construct a stroboscopic viewer to demonstrate how a gated view of dripping water may produce the illusion of "frozen" motion.

Examine a map of the travel routes and evening nesting sites of two chimpanzees and create a travel route of your typical day. Describe the social enhancements that helped humans to evolve from foraging behavior to establish fixed...

Learn about John Tyndall's belief in the importance of observation in answering questions posed by science.

In this chemistry lab, students investigate how oil and water don't mix. They will work on their observation skills and their ability to follow directions to ensure they get the correct results. Students can then develop a new, testable...

In this four-part lesson, students will conduct a simulation of the coal formation process and will show the ability to do scientific inquiry. For the final project, they will use their findings they have recorded on their "Coal Fossil...

Employ techniques of scientific observation to test and measure your reaction time. Repeat the test several times to make conclusions about whether the time between a stimulus and a response can be improved with practice.

Which came first: the chicken or the egg? One might ask the same question about potential and kinetic energy. Make observations while you watch the video below. Think about what scientific conclusion you could make from your...