At this level, students are expected to understand a functional structure and identify the various processes and components of a system (e.g., robot, front-end loader/backhoe). The students should also be able to calculate the mechanical advantage (MA = force needed without a simple machine divided by force needed with a simple machine) of various mechanical systems (e.g., a robotic arm transfers force through the fulcrum or a simple fixed pulley system redirects the effort force). This activity will provide a concrete example of how a robotic arm functions, thus describing systems that could potentially improve the productivity of various industries (e.g., robotic systems have increased the rate of production in factories that assemble the fine parts of wristwatches).
Written by Gordon Trites, a 2015 Galbraith winner from the University of Toronto.
Students will understand that using salt on roads and sidewalks in the winter makes transportation safer and easier for drivers and pedestrians.
Students will be able to
- Identify the four seasons in relation to temperature and time of year (calendar).
- Identify matter as being solid or liquid based on properties and characteristics.
- Read and record temperature using a thermometer.
- Develop and test a hypothesis.
- Compare the effects of different solids on ice/water.
Specializing in one sport is key risk factor; spotting diseases early; batteries that don’t need to be replaced; converting nitrogen to a consumable form; feeling objects that aren’t there; will we know extraterrestrial life when we see it? – just a few of the themes in today’s eclectic collection of SciNews. Share these stories with your students and get them excited about science.
Each month Carolina Biological Supply Company posts very useful science teaching strategies. Have a look at the April edition: