Curated OER
Future Conditional
Students examine how toxic pollutants affect environmental and human health. They define key terms, watch a video, and answer discussion questions.
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DNA Extraction From a Variety of Tissue Samples
Students, working in cooperative groups, extract very impure samples of DNA from a number of tissue samples. They determine how the samples can be preserved and how they are similar.
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Measuring Water Quality
Learners are introduced to the various methods of measuring water quality. In groups, they test various water samples using the different methods, writing them down for pH, oxygen, salinity, and nitrate levels. They use their data to...
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Quick Freeze (Demonstration)
Students witness an demonstration in which a bottle of club soda will go from a liquid to a solid when it is opened and the carbon dioxide is allowed to escape. This will help them understand that the freezing point of a solution will...
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Bouncing Popcorn
Third graders meet a teacher challenge to work like chemists. They investigate with baking soda, water, salt, sugar, vinegar, and sprite to move a popcorn kernel from the bottom of a cup to the top. They experiment with different...
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Brine Shrimp Survival
Students develop an understanding of how growth and survival of an organism depends on physical conditions. They design an artificial environment in which brine shrimp can thrive. Students determine the optimum salinity for hatching of...
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DNA Extraction Laboratory Experiment
Students will visualize how DNA is extracted from cells by performing a simple laboratory experiment. They will then use this knowledge to further understand how scientists are using DNA extraction to try to clone human cells, and to...
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Using Magnetotactic Bacteria to Study Natural Selection
Students demonstrate that living organisms may possess incredible adaptations which enable them to survive. They observe bacteria that are able to orient themselves using the Earth's magnetic field and formulate a hypothesis as to how...
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Conversions at Sea
Students demonstrate problem solving skills. Students complete word problems requiring unit conversions. They convert both metric and standard units. Students must determine necessary information to solve problems.
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Current Interactions
High schoolers design an experiment to see how wind, temperature, and salinity work together to influence ocean currents and present it in a report format. They explain to their classmates how experiment findings relate to ocean currents.
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The Buoyancy Factor
Learners examine why some objects float in water while others sink and the ability of something to float does not depend entirely on its weight. Archimedes' principle is introduced and buoyant force is discussed. Practice calculations...
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What Is Sustainability
Pupils investigate the concept of how people are dependent upon natural resources and how they can apply them to be maximized in usefulness. The students are encouraged to develop an appreciation for the environment. They conduct a class...
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Tracking the Salt Front
Students manipulate Hudson River salt front data from October 2004 -
September 2005 to locate the high and low points of the salt front for each month, They determine the range for each month, determine the modal range for each month,...
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Locating the Salt Front
Students use Hudson River salinity data to create a line
graph that shows the location of the salt front, and use math
skills to explore how this location varies over time. They use the graph to estimate the location of the salt front...
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Where Do Fish Live in the Hudson?
Students explore the environmental factors that influence where fish live and determine the makeup of fish communities in the Hudson. They interpret guided observations and measurements to assess patterns, sequences and relationships.
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Fish Communities in the Hudson
Students use tables of fish collection data to draw conclusions about where fish live in the Hudson Estuary. Given available data they interpret organized observations and measurements and recognize simple patterns, sequences, and...
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Water World
Students explore the various steps of the water cycle. They identify the three steps in the water cycle and how they are related. Students describe three ways to conserve water. Students explore the origin of the water source that...
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Water Quality Monitoring
Pupils 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...
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Water Systems
In this water systems worksheet, students refer to their textbook to complete questions about the amount of water on earth and the portion of water in various forms. Students review porosity, permeability, and water table. This worksheet...
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Cloze Passage: Fishes
In this cloze passage worksheet, students read a passage and fill in blanks with words given in a word list. The passage is about fish and their characteristics.
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Combination of Atoms
For this atoms worksheet, students review protons, neutrons, electrons, molecules, compounds, and ions. This worksheet has 10 fill in the blank and 3 problems to solve.
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Maryland
In this Maryland reading comprehension worksheet, learners read a 2-page selection regarding the state and they answer 10 true or false questions pertaining to the selection.
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'EA' Crossword
In this crossword puzzle activity, students solve the clues to complete the 'ea' words. Students solve 9 clues to spell the 'ea' words.
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The Water Cycle: Crossword Puzzle
In this water cycle learning exercise, students complete a 13 word crossword puzzle, using a set of given clues about the water cycle.