Plants are smart. Find out how as you build, plant, and learn about light and saving energy.
Social Studies 5
Natural resources continue to shape the economy and identity of different regions of Canada.
Nature of sustainable practices around B.C.’s resources.
Students will be able to:
Build a shoebox maze and watch your plant grow towards the light.
Let’s flip the switch and have a closer look at light options.
Their roots grow down (or laterally) and the aerial parts grow towards natural or artificial light. The process of photosynthesis uses light energy to turn carbon dioxide and water into sugars, which the plant uses. Essentially, the plant needs to find light to get food.
Although plants will grow under artificial light, studies have shown that they prefer natural light which has a perfect balance of wavelengths necessary for plant growth. Use of artificial light (greenhouses and in underground spaces) is a growing industry. Benefits include the ability to grow local food throughout the year, however, there are impacts on energy, and light pollution.
Natural light can benefit our health and save energy. Natural light:
LED light bulbs have a long lifetime and use 75% less energy than incandescent light bulbs. There is also a range of colours available for LED bulbs, ranging from a soft yellow to a bright daylight, which can provide an alternate to natural light. Go to Energy-efficient products for more information on LED lighting.
BC Hydro uses the power of falling water to create clean, reliable and renewable electricity. However, it is essential we conserve electricity as conservation is key to preventing further environmental impacts of increasing electricity demand. Learn more about how to save energy with lighting here.
The activities in this lesson provide an opportunity to assess individual students and groups on their ability to: