Learners are introduced to the pedometer, and use this tool to associate physical activity (physical energy) with calories burned (chemical energy). They comprehend the making and burning of energy.

Students participate in an experiment in which the substances are sealed in a plastic bag. Watching the experiment, they determine why the chemical reaction is taking place and calculate the temperature change. To end the lesson, they...

In this science molecule models instructional activity, student convert 8 molecule models to chemical formulas and 8 chemical formulas to molecule models.

Students experiment with silly putty.  In this chemical changes lesson students work in groups, perform tests and collect data.

Students investigate various substances to determine the perpetrator of a crime. In this biology activity, students test for the presence of organic compounds in various samples. They identify an unknown substance based on its physical...

Students explore the various components of the digestive system and learn about both the physical and chemical processes that work together to break down food into absorbable molecules.

Students make their own pH indicator from red cabbage. Red cabbage contains a chemical that turns from its natural deep purple color to red in acids and blue in bases. Students boil the cabbage to get the pH indicator.

Learners solve an environmental problem on a local river. They use their knowledge of river ecology to develop an action plan. They use river-monitoring equipment to collect river- monitoring data, including biological, physical, and...

Ninth graders test water in a local creek using chemical kits and probes. They take GPS readings and digital photos. They calculate the Water Quality Index and create a spreadsheet of the test data.

Seventh graders determine the amount of blue food coloring in sports drinks and plot the concentration and absorbance data. They summarize the data and determine why companies need to know the amount of chemicals in their products.

Children discover with parent supervision, places where medications are stored and identify any chemical substances that are taken to change how one's body or mind works. Child discusses with parent differences between medicine and...

Students study the aspects of a forest floor ecosystem, including decomposition, the water cycle, food webs, the needs of living things, and physical vs. chemical change over an extended period. In addition, students conduct observations...

Fourth graders study physical and chemical weathering. They explain how the processes of weathering and erosion change and move materials that become soil. They create a K-W-L chart to show what they know and list what else they would...

Students listen to a lecture on the collision theory. They discuss the reactant and product changes during a chemical reaction. Students are taught the factors affecting reaction rates. They complete a lab on entropy, heat and free...

In this chemistry worksheet, students calculate to find the molar mass of water. Then they identify how many moles of hydrogen atoms and oxygen atoms they would have in a beaker. Students also write the chemical formula of cholesterol.

Students study what phytochemicals are, how they work and where you can find them. In this food chemicals lesson students complete and activity and study products that contain phytochemicals. 

It's a gas. Middle schoolers build a biogas generator following the directions in this resource. After a few days of observation, they demonstrate that the gas given off by the decomposing manure is flammable. The activity concludes as...

In this biochemistry worksheet, learners complete a crossword puzzle with 36 questions. They identify different polymers and functional groups.

Light a fire in your pupils! Scholars conduct a flame test and observe the emission spectra of several different salts in an enlightening hands-on investigation. They use their observations to make comparisons and conclusions about the...

Students analyze images of five different soil types from various locations and discuss how climate, vegetation, parent material, topography, and time can contribute to soil characteristics.

Students research an assigned biogeochemical cycle. In this cycle activity, students need to determine that all cycles need energy to continue. The students will look at a given cycle to describe it, research and draw an assigned cycle,...

Students explain the mole concept and use this concept to prepare chemical solutions of particular molarities.

Learners are introduced to the concept of genetic engineering. In groups, they participate in a variety of experiments, in which they analyze the effect of chemicals on different substances. Using the internet, they research gossypol,...

Students study the historical background of Desert Storm/Desert Shield. They determine that not all Americans were in favor of the Gulf War and examine the Gulf War Syndrome. They discover that another possible cause pertains to...