Students determine the approximate time a cell spends in each phase of mitosis by counting cells in each phase from a prepared slide. They use a few simple calculations to estimate how long cells spend in each cycle in the body.

Students investigate how mutations lead to changes in cell structure and function. They construct an oligonucleotide, identify a protein sequence, design a step-by-step mechanism of how they think cells repair damaged DNA, and prepare...

Students work as a team to use the ProScope Digital USB Microscope and a computer to collect microscopic images from a variety of organisms. When they compare these specimens, they are able to determine how they are alike and different...

Students collect and describe cells from an onion root tip which are undergoing the stages of cell division. They use a ProScope USB microscope to identify and compare cells in five phases of mitosis.

Students examine cell division and the process of mitosis.  In this cell reproduction lesson students grow yeast and observe the results, and learn about the career of scientific illustration. 

Students discuss what comes to mind when they hear the term cell and discuss what a cell is in biological terms. They look at pictures of cells and color a picture of a cell diagram, writing the job of each part as they go. After the...

Take your class' understanding of cells to the next level... or levels! Demonstrate the levels of organization using a variety of engaging methods. The teacher's guide includes the materials you'll need to execute a flower...

Eighth graders enhance their skills in operating a microscope. They become comfortable with the vocabulary associated with microscopes and investigate how to place slides and focus them properly using the microscope. Students are given...

Observation of sister chromatids is possible as students culture and stain mammal tissue cells.  

For as small as they are, there sure is a lot of information for young scientists to learn about bacteria. Help simplify the subject with this instructional presentation that explores the structure, nutrition, and reproduction of...

Create the perfect conditions for osmosis. Young scholars use a microscope to observe plant cells exposed to distilled water or sodium chloride. They observe how osmosis creates turgid or plasmolyzed cells.

Students explore the world of the very small using a Flash plug-in Virtual Electron Microscope. They complete and discuss an activity in which unknown samples are placed under the computer simulated microscope to determine where the...

High schoolers conduct a series of activities to explore the nature of cells. In this biology activity, students observe plant and animal cells under the microscope and compare them. They differentiate osmosis and diffusion.

Students compare cell structure to the structure of a city. For this cell structure lesson, students investigate differences and similarities between cell structure and city structure. Students create a 3-dimensional, edible model of a...

Students create simple 2D concept driven visualizations of cells and cell organelles and organize them into an effective presentation.

Students microscopically observe various subcellular components. They determine the effects of different salt solutions on Elodea plant cells. They detect the presence of chloroplasts, cell walls, and cell membranes of Elodea.

Eighth graders, after creating a Venn Diagram comparing/contrasting animal and plant cells, writing ten similes describing cell types, or drawing a colored diagram of a cell, list cell types as well as describe and label cell parts. They...

Seventh graders describe the processes involved in mitosis and meiosis. In this life science lesson, 7th graders create chromosome models using strings and beads. They play a jeopardy team game at the end of the unit to review concepts...

Students listen to an explanation of yeast cells and how they effect bread and beer. They discuss the ways alcohol affects the human body and participate in an indirect observation about cell respiration in yeast-molasses cultures.

Objects are larger (or smaller) than they appear! Scholars use a laboratory investigation to explore the difference between resolution and magnification. The activity allows them to calculate the size of the field of view of their light...

Coloring pages showcase microbes—bacteria, viruses, and protists. Scholars have the option to download a coloring book and scavenger hunt or color the page directly on the computer. Three paragraphs describe each microbe. 

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.

In this microscope worksheet, learners use an on line site to answer questions about the history of the microscope, they view objects and identify what each is, they explore different magnifications of the microscope and they answer...