by msander | Aug 2, 2017 | Gr. 11-12 Chemistry
Introduction Studies of radioactivity at the beginning of the 20th century made it possible to investigate the actual structure and mass of atoms. Gradually, evidence began to build that atoms of the same element could have different masses. These atoms were called...
by cbrookallred | Aug 2, 2017 | Gr 1-3 Science & Tech
Liquids and solids interact in different ways. Inquiry Skills Used This is a research activity using various problem-solving processes and observations to assess the outcome of the experiment. Safety Considerations Even though this is an incredibly safe activity, it...
by msander | Jun 26, 2017 | Gr 4-6 Science & Tech, Gr 7-8 Science & Tech, Gr 9-10 Science
This video describes a simple rocket building activity that could be used as part of your STEM program. The rocket is powered by the reaction baking soda and vinegar. The video provides suggested trials that your students might...
by msander | Jun 15, 2017 | Gr. 11-12 Biology
In this activity, lysing the cell wall of a piece of fruit is accomplished by quickly blending or smashing the fruit. Salt is added to the filtered fruit solution to coalesce (combine) the DNA strands that have been freed from the nucleus. Detergent is added to the...
by cbrookallred | May 15, 2017 | Gr 7-8 Science & Tech
The Italian scientist, Galileo Galilei, created one of the first thermometers in the late 1500s. It was a rather simple apparatus involving a long thin tube, open at one end, and a pan of water. Students can replicate this experiment, demonstrating the principle...
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