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...

In this chemistry worksheet, students find the formula weight for each of the substances listed on the sheet. Then they find the percentage composition as indicated.

In this computer worksheet, students use ViewPoint's forward and backward arrows, and the search tool to locate information given about minerals and vitamins. They load the Vitamins datafile and use the search tool to respond to five...

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...

Lesson 21 in a series of 36 specifically focuses on elements and their compounds from groups 13, 14, and 15 on the periodic table — including boron, carbon, aluminum, silicon, nitrogen, and phosphorus. Classes learn how some of these...

In this chemistry worksheet, learners write the balanced chemical equation for each. Then they calculate the mass of nitrogen dioxide created with specific amounts of nitrogen and oxygen. Students also identify how many grams of the...

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,...

For this atoms, mass and the mole worksheet, students are given 18 problems to solve for the number of atoms, the mass of the substance or the moles of the substance. Students show their work and include all the units of measurements.

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.

Four pages provide plenty of problem solving practice for chemistry whizzes. They answer questions and write electron configurations for ions. They use Lewis dot diagrams to display equations. Covalent bonds are explored. The last half...

Test your class with a physical science quiz. Learners explain chemical processes, name compounds, write formulas for chemical compounds, balance equations, and more. 

Here is a top-notch handout to supply your chemistry class with. It covers valence electrons, Lewis diagrams, the octet rule, and more! Technically it is less of a worksheet than a detailed explanation of these chemical bonding concepts....

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...

In this gas law worksheet, students use the Universal Gas Law and van der Waals equation to calculate volume and molar mass of gases. This worksheet has 6 problems to solve.

For this countdown challenge worksheet, students find the 10 common elements from the human body, earth's crust, and ancient times and color code them. Students fill the atomic number of the elements in a given periodic table.

Promote reading comprehension and practice naming parts of the human skeleton with this online interactive worksheet! Scholars read about the functions of the human skeletal system, then work online to label a diagram by filling in 18...

In this chemical compounds worksheet, students determine the empirical formula or the molecular formula for the compounds given. Students calculate percent composition. This worksheet has 10 problems to solve.

In this compounds worksheet, students determine the empirical and molecular formulas for given compounds. This worksheet has 10 problems to solve.

In this compounds worksheet, students write the name or the chemical formula for the given covalent binary compounds. This worksheet has 20 problems to solve.

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 naming compounds instructional activity, high schoolers write the chemical names of 10 ionic or covalent compounds. They also write the chemical formula for 10 ionic or covalent compounds.

In this bonding worksheet, students complete a chart of elements, their symbols, the total number of electrons, the number of valence electrons and the oxidation numbers. They draw Lewis structures for atoms and show the transfer of...