Students experiment with the cohesion of water molecules. In this surface tension lesson, students estimate how many drops of water a full glass can take before overflowing. They watch a video that explains water molecules.

Students perform experiments to determine how different acids cause acid rain. They measure the pH of the water to calculate the water's acidity. They discover how acid rain dissolves rock materials.

Student observe and quantify the respiration that occurs in yeast-molasses cultures. They complete an effective experiment in order to examine how to think critically about the results.

Fourth graders investigate chemical changes in everyday life settings, such as cooking. They investigate leavening which is one of the classic chemical changes that people experience. Pupils observe leavening in biscuits with the...

In this chemical reaction principles worksheet, students read about definite proportions and the law of conservation of mass. Students read about how to balance a chemical equation. Then students complete 20 fill in the blank, 2 short...

Learners examine clouds. In this technology skill lesson, students identify different cloud types, observe and photograph clouds in nature, and print and write a riddle about the objects they see in the clouds.

Sixth graders conduct experiments with yeast to study characteristics of microorganisms. They, working is small groups, change the variables in the experiments and note the results which they later discuss as a class.

In this chemical reactions worksheet, students compare endothermic and exothermic reactions, closed and open systems, and reactants and products. Students review physical and chemical changes and how to balance equations. This worksheet...

In this organic compounds, students complete a graphic organizer by placing 36 vocabulary words into their correct places in the concept map.

Students investigate chemical and physical changes in reactions. In this chemical and physical change lesson plan, students mix 6 different white substances with water, vinegar and iodine. They make hypotheses about each substance and...

Students perform paper chromatography to determine pigments in plants. In this paper chromatography lesson plan, students isolate leaf pigments, prepare a chromatogram and place their chromatogram in a solvent to separate the pigments....

Students are challenged to eat some candy as a cell would need to do it. By solving this problem students simulate the cell process called endocytosis. They think about some of the problems that arise when a cell ingests food.

Students watch a video clip about German submarines lost during World War II. They work together to create their own submarine out of a plastic bottle. They test the buoyancy of the submarine in different activities.

Students break into four groups, starting at different stations. Each station should take about 10 minutes depending on prior knowledge of the topic. They then rotate when everyone is finished to the next station and discuss answers of...

In this chemical detectives worksheet, students perform six tests on various unknown solutions, including a test for chloride ions, sulphate ions, carbonate ions, iron (III) ions, iron (II) ions, and copper (II) ions. Students record...

Students explore sinking and floating.  In this buoyancy lesson, students conduct an investigation dealing with regular and diet soda. Students drop various soda cans into water and then discuss why some float and some sink. 

Middle schoolers build an apparatus to look at how yeast cells grow by converting food to energy. They observe yeast both with and without food and see how yeast produces carbon dioxide.

Students conduct two set experiments on Lumbriculus worms and create a third experiment of their own. The first of the two set experiments allows students to observe regeneration of the worms while the second allows students to test the...

For this percent composition worksheet, students carry out an experiment to determine the percent of zinc in a penny. They write a balanced equation for the chemical reaction they performed with the penny and hydrochloric acid.

For this chemical reactions worksheet, students experiment with hydrochloric acid and copper (I) chloride to identify the types of reactions they undergo with various other substances. They also observe the law of conservation of mass...

High schoolers discover that scuba diving is more than a sport. It's a science that operationally integrates physics, chemistry, physiology, and oceanography. They perform a simple experiment which simulates the air tanks used in scuba...

Students define matter, the chemical properties of matter, and the physical properties of matter. They name physical and chemical properties of matter (by classifying using a Tree Map). Students determine the mass, volume, and density of...

Students explore the concept of polyhedra. In this polyhedra lesson, students use the Internet to manipulate virtual polyhedra models. Students create polyhedra models from straws, toothpicks, cardboard, Plexiglas, and other materials.

Students investigate energy by researching how oil reservoirs work. In this fossil fuels lesson, students conduct an experiment using a half full bottle of water, corn oil and oxygen, recording their data as the elements are mixed...