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- Grade Range
- 6th - 8th
- Rating
Students research and present examples of simple machines in daily life. In small groups, they discover how a type of simple machine such as an inclined plane or pulley helps do work by changing force, friction, load, surface area or distance. They use the presented material to discuss and identify the simple machines at work in several of Leonardo da Vinci's inventions. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students research measurements of the moon and Earth as well as the distance between the two in order to create scale models of the Earth-moon system. With a marble to be used as the moon, they must determine how large to make Earth out of modeling clay. Full Review »
- Grade Range
- 7th - 10th
- Rating
Students discuss food and the food groups and hteir organic nature. They test 3 different solutions and test for protein, starch and glucose. In addition, they create a master table on the board to collect all the teams results. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students examine the acid-base indicator, bromthymol blue (BTB), and what happens to it when you blow air into it or add plants and snails. Through an experiment, they test three different setups of BTB and record the color changes that occur in a 24 hour time period. Full Review »
- Grade Range
- 6th - 8th
- Rating
Students identify that yeast are a single celled fungi that are a great model organism for studying respiration in the classroom. They also fill the bulb of a disposable pipet (eyedropper) with yeast, then submerge the pipet in a test tube of water. Students then measure the rate of respiration by counting the number of bubbles of carbon dioxide gas that emerge from the tip of the pipet in a certain length of time. Full Review »
- Grade Range
- 9th - 10th
- Rating
Students examine DNA fingerprinting and polymerase chain reaction and how they are used in everyday life and for criminal investigations. They discover how these techniques can also be used to answer ecological and evolutionary questions. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students list the morphological characters used to identify the cacti in the field, and describe the associated problems in using these characters for identification. They draw the geographical ranges of the varieties of species Echinocereus triglochidiatus. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students practice pouring an agarose gel and loading the DNA into the wells to perform a genetic analysis of variation among individuals and between populations. They electrophorese the gel overnight. Full Review »
- Grade Range
- 5th
- Rating
Students explore who Gertrude Elion was and what discoveries she completed in science that helped sick children and people. They identify how Gertrude Elion has used the microscope and the scientific method in her experiments. Full Review »
- Grade Range
- 9th - 12th
- Rating
Students analyze compounds and identify the different types of bonds. While examining various substances such as butter, sugar, and aluminum foil, they sort them as either compounds or elements. In a lab activity, students examine hydrogen bonds in water. Full Review »
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