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
Cell Size and Division or How Big Would You Want To Be if You Were a Cell?
Learners investigate why cells divide. In this cell size lesson plan, students observe how far a solution travels into 3 different size model cells of agar. They answer questions about the most effect movement of "nutrients" into the...
Cornell University
Solar Cells: Juice From Juice
Unleash the power of ... blackberries! Science superstars create solar cells using the juice of berries or leaves of a citrus tree in an engaging lab. In addition to offering a plethora of resources, the teacher's guide gives background...
Exploratorium
Life Size - Explore the Size and Scale of Microscopic Biology
Compare sizes of microscopic items. Given a set of labels of microscopic objects, pupils try to place them in order from smallest to largest. Scholars then compare their lists to the actual comparisons along with the measurements of the...
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
Cell Size Changes
Learners examine the behavior of living cells treated with different types of stimuli. They watch an online movie, examine wet mount slides under a microscope, take an online quiz, and analyze data.
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
Cells All Around
Students measure the size of an epithelial cell and to estimate the number of epithelial cells in a given area of the body. After watching a video on cells, student groups perform an experiment using a microscope to view some of their...
Nuffield Foundation
Effect of Size on Uptake by Diffusion
Cell size is limited by the surface area to volume ratio, but why is this true? Scholars measure the surface area and volume of cubes before placing them into liquid. After a set amount of time, they measure the uptake by diffusion for...
Cornell University
Plant Cell Crime Scene
Use science to solve the mystery of the Poplar murder. Pupils use forensic botany to determine if a suspect could be the killer. By analyzing images from a Transmission Electron Microscope, learners determine if the material found on the...
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...
Virginia Department of Education
Prokaryotes
Lead your biology class on a cell-sized adventure! Emerging scientists construct models of prokaryotes, then design an experiment to properly grow a bacterial culture. They conclude the activity by viewing the culture under a microscope....
Curated OER
Cell Observation Exercise
Students take measurements of the distance between the objective and the slide when in focus with each objective. They determine the diameter of the field of view at each power in order to determine the size of the cells being observed.
Curated OER
Slimy Cells
Students create three-dimensional cell models. They may choose to make either a plant or animal cell but must use a Ziploc bag as the cell membrane, slime for the cytoplasm, and strawberry baskets for the cell wall if making a plant...
Curated OER
Osmosis and the Cell Membrane-part 2
Students participate in a review of diffusion and the basic properties of the cell membrane before exploring the process of osmosis in a lab activity. Using shell-less eggs that have soaked in various solutions, students make...
Curated OER
Solar Car Series: during What Part of the Day Can the Most Sun Power Be Collected?
In preparation for solar car races, middle schoolers attempt to discover what time of day the most solar energy can be collected. Begin by demonstrating the use of a voltmeter for measuring solar cell output. Take them outdoors to take...
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...
Curated OER
What Makes a Seed Breathe Faster?
Here's a five-star lesson plan in which inquisitors conduct sophisticated experimentation with cellular respiration in plant seeds. Placing seeds in a closed system they measure the amount carbon dioxide produced and relate it to...
Curated OER
Measures of Central Tendency
Students analyze data using central tendencies. In this statistics instructional activity, students collect and analyze data using the mean, median and mode. They create a power point representing the different measures of central tendency.
Curated OER
Heating and Cooling a Really Large Lizard
Remind your middle school scientists how fox ear size varies depending on the climate they live in; large ears allow heat loss while small ears keep heat in. Discuss how a cold-blooded animal might try to regulate body temperature. Then...
Curated OER
The Day an Egg Solved the Mystery of the Cell
Students conduct an experiment comparing human cells to chicken cells. In this cells lesson plan, students conduct an experiment to see how nutrition moves through cells and how to better take care of their bodies.
Curated OER
Observing Osmosis
Students investigate osmosis using egg cells with the shells removed. In this osmosis lesson plan, students remove the shell of an egg by letting it soak in vinegar for two days. They take measurements and observe the cell. They soak the...
Curated OER
You...Instead of the Onion Skin
Students observe their own epithelial cells from the inside linings of their cheeks using DigiScope technology. They prepare a slide with both onion cells and epithelial cells and make an illustrated booklet for a PowerPoint presentation...
Curated OER
Slimy cells
Students study the parts of a cell. In this chemistry lesson students complete an activity in which they make as much slime as they want.