Do predators look for different things in different seasons? The quick interactive shows how some species survive longer in one season than another based on the conditions. The challenge questions encourage pupils to demonstrate that...

If any of the limiting factors in an environment change, both animal and plant populations also change. The video explains two different models of growth and the impact of limiting factors. It highlights the carrying capacity of an...

One of the few organisms that are classified by the environment in which they live include archaea. The video describes the phylogeny of the group and their major characteristics. It details how they reproduce and discusses the diversity...

Before iPhones and calendars, how did humans determine the seasons of the year? Middle school scientists discover how to use shadows to determine the time of year in an enlightening interactive. Pupils manipulate the sun and examine the...

Four lessons, each following the same routine, explore the careers of a teacher, nurse, electrician, geologist, plumber, and police officer. After listening to a read-aloud and thoughtful discussion, young scholars construct puppets...

Fourth graders study the water cycle and clouds. In this water cycle and cloud lesson, 4th graders determine the definition of condensation and watch a demonstration in which the teacher makes a cloud in a bottle. They discuss the water...

Eighth graders engage in an experiment which uses an inclined plane and balls of various masses to determine the effect a large object has on a small object. They study velocity, momentum, gravity and forces.

Students list items they know and want to know about water on personal K-W-L charts. They describe what happened during the warm up activity in their science journal. Students travel to four different stations and perform the different...

Third graders are introduced to the six types of simple machines and discover how they make tasks easier. In groups, they rotate between stations to experiment with the different types of simple machines. To end the lesson, they make a...

Third graders gather information by questioning, forming hypothesis, collecting and analyzing data, reaching conclusions and evaluating results, and communicating procedures and findings to others. Then they demonstrate an understanding...

Students complete several cross-curricular activities to learn the letter Ff. In this letter recognition lesson, students complete activities that include geography, music, physical education, science, seasonal, space science, and online...

Students experiment to discover how certain viruses spread through a population. They simulate the spread of a communicable disease by analyzing data to identify the person who was originally infected.

Students read documentation about microorganisms in agriculture and share what they've read with partners. They taste samples of yogurt and describe the yogurt making process. They experiment with fermenting milk to recreate the yogurt...

In this health worksheet, students identify various infectious diseases and explore the available options for stopping or preventing the spread of disease. They participate in a simulation experiment on how to measure and prevent. There...

In this refraction activity, students will explore the property of light called refraction. Students will conduct a quick experiment to understand how light is refracted. Then students will complete 2 short answer questions.

Students illustrate the changes in the properties of a material at its glass transition point. They gather data which they use to construct graphs regarding elastic modules versus absorption modulus, tangent delta, and the effect of...

Here is a thorough lesson on safety in the chemistry lab. Chemists review a detailed list of safety rules, draw the layout of the laboratory area to include emergency equipment, identify hazard warnings, and consult the MSDS in order to...

In a hypothetical scenario, food chemists use titration to concoct a brine solution for producing the crunchiest pickles. They also analyze store-bought pickle juices. In addition to reinforcing titration techniques, the instructional...

Students investigate hot melt glue using a hot melt glue gun as an an injection molding simulator and a melt index viscometer. They evaluate the effect of heating and cooling by weighing the glue extruded over a constant time period.

Here's a five-star lesson plan in which inquisitors conduct sophisticated experimentation with cellular respiration in plant seeds. Placing seeds in a closed system they measure the amount carbon dioxide produced and relate it to...

First, young chemists practice polymer identification by density and flame tests. With the data collected, they propose a method of separating polyethylene from other plastics and determine what property makes it desirable for recycling....

Chemistry aces use an electrochemical cell to anodize a strip of aluminum. They apply an organic dye to it. In a practical application, they design a piece of jewelry out of the anodized metal and describe the process. Thorough notes...

Learners explore how an oil spill is contained and cleaned up. They investigate an oil absorbing polymer that is hydrophobic, absorbs up to 19 times its own weight in nonpolar liquids, floats on water, and can be reused or disposed of by...

College-level or AP chemists use phthalic anhydride to synthesize two different polyesters, one linear and one cross-linked in structure. A detailed materials list and well-written procedures are provided on a lab sheet. Learners write...