Curated OER
Estimating Maximum Cell Sizes
In this estimating cell sizes worksheet, students read about the relationship between a cell's size and the rate of cell waste diffusion. Students solve 4 problems including writing the equation for the rate of waste exchange, finding...
Curated OER
Fuel Cell Experimentation
With rising oil prices and increasing concerns over global warming, the pressure is on for engineers to develop alternative sources of energy. Among the new technologies being developed are hydrogen fuel cells, which young scientists...
Curated OER
The Microscope and Cell
In this science worksheet, students calculate the size of different samples using the microscope as part of a formal lab assignment.
Curated OER
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...
Teach Engineering
Ice, Ice, PV!
Knowing the temperature coefficient allows for the calculation of voltage output at any temperature. Groups conduct an experiment to determine the effects of temperature on the power output of a solar panel. The teams alter the...
American Chemical Society
The Discovery of Fullerenes
Carbon is the most common element on earth, so the innovative discovery of a new type of carbon molecule won the 1996 Nobel Prize. In the ready-to-go instructional activity, scholars learn about C60 and how it has opened up the entire...
Teach Engineering
Quantum Dots and Colors
Introduce teams to quantum dot solutions with an activity that has them expose solutions to a blacklight, observe the colors, and take measurements. Groups graph the data and analyze the dependence between particle size and color...
Teach Engineering
Exploring Acceleration with an Android
Small groups use rubber bands to accelerate an Android device along a track of books. They collect the acceleration data and analyze it in order to determine the device's velocity.
Curated OER
Hinode-Close Up of a Sunspot
In this solar sunspot activity, students use two photographs from the Hinode solar observatory showing a sunspot on the solar surface. Students solve 5 problems including finding the scale of the images, determining the smallest detail...
Curated OER
Counting Galaxies with the Hubble Space Telescope
In this counting galaxies worksheet, students use a photograph taken by the Hubble Space Telescope and they divide the field into 16 square areas. They find the average number of galaxies in the cells, they find the area of one of the...
Curated OER
Diatoms of Laboratory Indicators of Water Quality
In this science activity, learners use the diatoms present in water in order to test water quality and perform data collection and interpretation.