Meiosis is important in assuring genetic diversity in sexual reproduction. Use this interactive animation to follow Meiosis I (reduction division) and Meiosis II in a continuous sequence or stop at any stage and review critical events.
This animation demonstrates the stages of mitosis in an animal cell. Use the control buttons in the upper left to run the complete animation. Click on any intermediate stage (for example, Anaphase), and see a representative still frame.
Try your hand at assembling the following animal cell jigsaw puzzle created with an image from CELLS alive! This puzzle is 32 pieces and generally takes a few minutes to solve. Have fun!
This is a great site to learn about apoptosis. It includes pictures, information, and links to other great sites on apoptosis. There is also a video that is available for download.
This website has five great astronomy activities! By engaging in these activities, you can learn about the Milky Way Galaxy, the Sun, the Big Dipper, and stars!
Try your hand at assembling the following bacteria jigsaw puzzle created with a Streptococcus image from CELLS alive! This puzzle is 32 pieces and generally takes a few minutes to solve.
Visit this site to learn what a geophysicist is, the different types of geophysicists, and the schooling you will need to become one.
Play this biology hangman game to help you study your biology terms!
Try this fun problem! In any group of six people, what is the probability that everyone was born in different months?
Welcome to the CELLS alive BioCams. In these BioCams, you will get to learn about cancer and bacteria cells. However, these are a bit different from "livecams" you might find elsewhere on the web - these repeat at daily or shorter intervals in order to convey information on biological rhythms.
This cell crossword puzzle uses vocabulary from CELLS alive! If you have trouble, use the "Search this Site" engine in the lefthand menu.
During development from stem to fully differentiated, cells in the body alternately divide (mitosis) and "appear" to be resting (interphase). This sequence of activities exhibited by cells is called the cell cycle. Watch this animation to learn more about each of the stages in the cell cycle: interphase, gap 0, gap 1, S Phase, gap 2, and M phase.
This cell structure crossword puzzle uses vocabulary from CELLS alive! If you have trouble and need a hint, use the "Search this Site" engine in the lefthand menu. Good Luck!
Play these two matching games from the Web Weather for Kids site to pair cloud images with their names/types! Developed by the University Corporation for Atmospheric Research, this site requires Java.
Do you have a big decimals test coming up? Or are you studying for your standardized math test? This site is both fun and helpful! On this site you can review the following topics: place values of decimals, how to read decimals, expanded notation for decimals, and how to convert fractions into decimals. On this site you can also review how to add, subtract, multiply, and divide decimals. You will also learn about terminating and repeating decimals.
The Decimals Cruncher game will help you learn about decimal operations! You can choose to practice adding, subtracting, multiplying, or dividing. You can also pick how hard the game is. The game has 4 levels: easy, medium, hard, and killer. The Decimals Cruncher will keep track of your score. When you switch to a new operation (addition, subtraction, multiplication, or division), your score will start over again.
This site contains questions about earthquakes from students just like you! Mr. John Lahr from U.S. Geological Survey answered the questions and the information has been put up for you to read! If you hit the "back" button on this page, you can also play a word-search, a crossword puzzle, and try your hand at scrambled definitions.
The representation depicts convergent plate boundaries. The animation shows how continents can "grow" by accumulating crustal material along their edges at convergent boundaries. One can view the animation in full motion, or choose to view the animation in detail frame by frame.
This animation explores the forces and processes that deform rocks by creating folds, faults, and mountain ranges. You will learn how landmasses move, see the resulting deformation, and learn how this deformation relates to plate tectonics.
This activity will help you to learn about percents! In the activity, you will be estimating the percent of trees burned and the number that actually burned in a devastating forest fire.