Students visualize DNA from cells and explain the basis and importance of the Gram-stain reaction and to perform the KOH test equivalent.

Students explore conductivity and productivity in aquatic systems.

Students investigate how long dinosaurs lived on Earth and how that compare to how long man has been on Earth. They discover how scientists excavate fossils.

Sixth graders collect soil samples and record the location of the samples by using GPS.

Students investigate the steps in creating a brochure using information about milk and its health benefits. Using expository writing, an information packet is created with pictures of students wearing their milk moustaches.

Students perform an experiment in which they put different types of salts in a balloon, fill it with hydrogen gas, and ignite it. The electrons in the salt molecules are excited by the heat and release energy in the form of light. ...

Students identify the concept of an element and work with an idea that all of the millions of substances on the earth are various combinations of only 8 elements. They work with the Periodic Table of the Elements and symbols of the...

Students experiment with the LaMotte Winkler-Titration Test Kit to try to answer the question of what is dissolved oxygen. They explore all the possible ways to test for dissolved oxygen and brainstorm all the obstacles that can affect...

Students comprehend the four parameters of water quality. They perform tests for salinity, dissolved oxygen, pH and clarity or turbidity. Students comprehend why scientists and environmental managers monitor water uality and aquatic...

In this endocrine system worksheet, students match the correct gland found in the endocrine system to its hormone and target cell(s). They also describe the actions of each gland and hormone combined together.

In this chemicals worksheet, high schoolers fill in 61 blanks of statements comparing the chemicals used in farming and the chemicals found in medicines and food.

In this chemical formulas worksheet, learners practice naming molecular compounds by their formulas and determine if a gas is a compound or an element. This worksheet has 13 fill in the blank questions.

For this water worksheet, students determine the factors that effect the solubility of gases, calculate the percent concentration of solutions, and give the balanced chemical equation for photosynthesis. This worksheet has 18 short...

In this crossword puzzle activity, students read the clues that relate to diffusion and osmosis. Students then complete the 20 question crossword using the given clues.

In this acids and bases activity, students apply the Bronsted-Lowry theory of acids and bases to write the products for the given acid-base reactions. This activity has 7 problems to solve.

In this solutions activity, students use a phase diagram to determine the boiling point and molality of the solution. Students determine the electrical conductivity of a saturated solution. This activity has nine problems to solve.

In this reactions worksheet, learners calculate the heat of reaction for given chemical reactions. This worksheet has 3 problems to solve.

For this elements worksheet, students determine if the given elements are metals or nonmetals. Students give the valence electrons for other elements. This worksheet has 10 fill in the blank questions.

In this quartz learning exercise, students read about the chemical composition of quartz and its commercial applications. Then students complete 7 short answer questions.

In this Earth's crust learning exercise, students determine the most abundant and least abundant elements in the atmosphere, oceans, and crust. This learning exercise has 1 fill in the blank and 11 short answer questions.

In this rocks worksheet, students review the different types and characteristics of igneous rocks. This worksheet has 2 fill in the blank, 14 short answer questions, and 1 problem to solve.

In this facts about bananas worksheet, students answer a set of 10 multiple choice questions about bananas. Answers included on page 2.

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

Learners review vegetables and their nutrient values and production. In this vegetable production worksheet, students read information about the nutrients in vegetables and how they are grown. Learners participate in a game of Twister to...