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Cell Transport
In this biology instructional activity, 9th graders describe what osmosis is and how it explains the fact tat a watery syrup forms when you put sugar on strawberries. Then they describe how proteins made by ribosomes leave the cell....
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Earth's Atmosphere
In this Earth's atmosphere learning exercise, students observe the effects of air pressure using an egg. They describe what happens to the egg and what makes it do what it does. Then they determine how to get the egg out of the bottle...
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Moles, Molecules, and Molar Masses
In this molecules worksheet, students calculate the mass or volume of a certain number of moles of a compound. There are 3 difficulty levels of this worksheet, each one has 6 problems to solve.
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Photosynthesis and Cellular Respiration
How does energy from the sun make plants grow? Scholars move step by step through the processes that promote plant propagation during a detailed lesson. The resource illustrates ADP production and hydrolysis, then allows learners to...
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Graham's Law
In this gas laws worksheet, students apply Graham's Law by completing 6 problems finding the velocity and molecular mass of gases.
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Fractions and Chemistry
In this fractions in chemistry worksheet, students solve 2 problems where they state all the answers as simple fractions or integers. They determine ratios of molecules in gasoline and they find ratio of molecules in the creation of...
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Exothermic and Endothermic Reactions
Young scholars observe demonstrations of exothermic and endothermic reactions and determine the changes that take place in a chemical reaction. Students observe four demonstrations showing entropy, attraction of molecules due to...
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Science: What Is the Carbon Cycle?
Students examine the carbon cycle while identifying its sources, sinks, and release agents. Using magazines and newspapers, groups of students design collages illustrating the carbon cycle. Finally, they write responses to several...
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Resources for Teaching about Biogeochemical Cycles
Students study the different cycles and Earth's systems. In this investigative lesson students study the nitrogen and carbon cycles, play a game pertaining to it and also participate in a class activity.
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Mole Relationships
In this moles activity, students complete 93 word problems in they calculate the moles, volume, or mass of different molecules.
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Density: Floating, Sinking, and Suspending
Students observe teacher demonstrations that illustrate density. In this density lesson, the teacher demonstrates how air bubbles in a carbonated drink can cause a raisin to float and how an egg sinks in fresh water, but floats in salt...
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Indoor Air Pollutant Sensing LAB Lead-In: A Canary in a Coal Mine?
Learners investigate the causes of carbon monoxide in mines and other common sources of CO. Pupils read the worksheet "Canary in a Coal Mine" before beginning this investigation. They discuss ethical issues regarding treatment of miners...
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Combining Atoms
In this atoms worksheet, students explore the different types of bonds, name compounds, and determine charges of molecules. This worksheet has 8 true or false, 9 fill in the blank, and 5 short answer questions.
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Weather Lesson 1
Students describe and compare the layers of the atmosphere. They explain how to measure the temperature of the atmosphere. They also explain what causes the atmosphere to heat up in some places more than in others.
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Energy and Stoichiometry
In this stoichiometry worksheet, students calculate the amount of heat energy released in combustion equations. This worksheet has 4 problems to solve.
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Recognizing Polar Molecules
In this polar molecules worksheet, students complete a graphic organizer by writing in the bond type, electron dot diagram, and the type of compound for the chemical compounds given.
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Making a Human Methane Molecule
Learners demonstrate the components of methane molecules to discover their effects on the atmosphere. Students role-play as four hydrogen atoms and one carbon atom linked together to make a methane molecule. Learners act as the molecule...
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How Cells Harvest Energy
Survey the metabolism process from respiration through the production of the ATP molecule with this seven page AP biology worksheet. Pupils write short answers on the lines provided and label a diagram of the cellular respiration process.
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Investigating Osmosis
A thorough investigation of cell transport is provided when completing the assignment. The first half requires biology class members to answer questions about diffusion and osmosis with the aid of diagrams. Then they fashion an...
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Molecular Mass and Percent Composition
In this molecular mass and percent composition instructional activity, students complete 5 sections where they determine atomic masses of given elements, they determine formula masses for given molecules, they find the molecular mass of...
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Science: Quick Freeze
Students observe an experiment of freezing point depression using club soda. Through observation, they note that the carbon dioxide molecules disrupt the capacity of the water molecules to solidify. Precautions must be taken to assure...
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Water - the (Nearly) Universal Solvent
In this water worksheet, students explore the reasons why water is considered a universal solvent. Students compare different ways to change the dissolving rate of a solute. This worksheet has 11 fill in the blank and 8 matching questions.
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Energy Changes in Reactions
In this chemical bonds worksheet, students determine how much energy is needed to break bonds. Students classify reactions as exothermic or endothermic and identify a reaction as reversible. This worksheet has 4 problems to solve.
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Combustion Reactions
Students write a balanced chemical reaction. They articulate how burning fossil fuels increase the carbon dioxide levels in the atmosphere. Students incorporate all the environmental risks involved as well.