How do we affect the ecosystem, and what can we do to preserve it? Pupils explore chemicals that promote and inhibit plant growth, then discuss the importance of nitrogen and phosphorus to the survival of organisms and describe how...

The four cycles in Earth's biogeochemical system are covered in this worksheet. Science stars fill in the blanks or define vocabulary terms pertaining to the hydrologic, carbon, nitrogen, and phosphorous cycles. This resource provides a...

A set of guided notes walks your biology or environmental studies learners through the dynamics of ecosystems. They write short answers to questions about the energy budget, food webs, trophic levels, and biogeochemical cycles. One way...

When learning about several different processes at a time, it can be difficult to differentiate between them. In the resource found here, you can see what your kids know about some of Earth's systems including the carbon, hydrologic,...

Twelve questions about the various calculations of mass and yield are given here.  There is significant practice of molarity calculations and consideration of the reactant and product balance.

The topics covered in these multiple choice questions are about atomic structure and bonding, state configurations, pressure and solution concentration, and energy graphs. This is a midterm review which could be used with the whole...

If your class is learning about the biosphere, you may find a study guide or reading guide helpful. Focusing on vocabulary, processes, and interactions, the Word document is easy to edit as needed to fit your needs. Another great...

There is so much to learn about the different cycles, processes, and parts of the biosphere. Using a pretest as a formative assessment to see what your budding ecologists already know is a great way to figure out which important areas...

In this recycling worksheet, students review what items can be recycled, what is made from recycled items, and how recycling conserves resources. This worksheet has 5 word scramble, 10 short answer, and 5 multiple choice questions.

For this limiting reagents worksheet, students solve 10 problems. They calculate limiting reagents, they calculate percent yield of particular compounds and they determine how much of products can be produced based on the limiting reagents.

In this chemical reactions learning exercise, students name the reactants and products, balance the equation, calculate the molecular weight of the reactants and products, and classify each reaction type. Students fill in a table of...

In this writing chemical reactions learning exercise, students solve 15 problems on their own paper using a 3 step-problem solving approach. In addition, students write six balanced equations and classify each reaction. They also write...

In this fertilizer worksheet, students read about natural and manufactured fertilizers. They answer four critical thinking questions about fertilizers and their use.

In this body elements learning exercise, students read about the chemical make-up of the human body and answer questions about the elements.

In this molecular geometry and VSEPR learning exercise, students find bond angles, hybridization, determine polarity and draw orbital box diagrams of molecules. They determine molecular geometry and bond angles of given molecules and...

In this periodic table I quiz, students select the best answer to the given questions. Students apply their knowledge of the periodic table and the arrangement to correctly answer the questions presented.

In this biochemistry worksheet, students complete a table by filling in the missing information about different elements. Students draw the Bohr diagram and the Lewis dot diagram for several atoms.

In this elements learning exercise, high schoolers review the most common elements found in living things. Students color in two pictures with the percentages of the elements found in that living thing.

In this chemistry worksheet, students complete a six question multiple choice quiz about chemistry. This is an on-line interactive worksheet.

In this balancing equations instructional activity, students determine the type of reaction and write the balanced equation. Students read the word description and write the symbol of each element using the periodic table.