[Originally published: October 6, 2015]
Bringing agriculture into the classroom is a great idea to cultivate an assortment of topics and subjects into a theme around the school year. Agriculture and science coincide with each other, but agriculture is often overlooked in science. One unit about agriculture can crack abstract topics in chemistry, microbiology, biology, and environmental science. Here is a list of great ideas to utilize in your next science lesson:
Growing Seeds in a Jar
This experiment is easy, cost-effective, and fun; a younger crowd would enjoy this compared to high school students. All you need are glass jars, seeds, and wet paper towels. Have the students wet the paper towels, put the towels in the glass jar, place the seeds inside the jar, and wait a few days to see germination! You can use this experiment for a biology lesson that talks about photosynthesis or the plant life cycle! Also, this experiment is a great segue into talking about how plants provide us resources we need to survive such as food and clothes.
Incubation and Embryonic Growth
This experiment is a bit more common than #1; I remember doing this project in 5th grade; it’s one of the things I can remember from long ago. With this, it’s simple: nurturing eggs into chicks allows students to visualize life and to learn the importance for our lives. Chickens play a huge role in agriculture because of what they do on a farm. My favorite memory of it was hearing the chicks chirp when they eventually made their way out of the shells.
Friendly Farm Visit
This past summer I interned with my county farm bureau with Agriculture in the Classroom; each day we took the kids to a local farm to learn about various topics from plant growth to DNA. The hands on experience offered the kids something they couldn’t learn from a textbook. They got to visualize how their clothes were made (shearing a sheep) to watching their food grow six feet in a few months (corn stalks) to learning how breeds of cows differ (natural selection).
Chemical and Physical Changes
This topic can be tricky in Chemistry. As we know, a chemical change is a change of a substance with a different composition than what it started off as. On the other hand, a physical change is the change in appearance with the composition staying the same. To easily demonstrate a chemical change to students, show a bowl of soybean seeds and then show a box of crayons. Why? Because soybeans are morphed into crayons (along with other substances). In the beginning, the seed is just a seed but it’s composition and appearance change when it’s used for crayons. For a physical change, show a bowl of corn seeds, a corn stalk, and an ear of corn. Why? Well, the corn seed is morphed into a plant that grows seeds (kernels) from itself. The seed that was planted had the same composition as the kernels on the ear of corn.
Composting for Kids
A great idea to teach environmental science with agriculture is to start composting! Sounds weird, right? It’s a great hands-on experience that teaches kids a great way to be sustainable. It also shows students how we can reuse our resources and not waste products. Compost is comprised of decayed organic matter such as manure, food scraps, grass clippings, and leaves. Manure comes from farm animals, and food scraps come from humans and animals. Composting also teaches about the life cycle. Compost can help the growth of plants which helps to feed us and animals who produce the manure and food scraps that turns into compost, repeat. No matter what grade you teach, composting is a great way to teach kids about environmental science!
If kids aren’t understanding a science concept, it’s always a great idea to step outside the box! Agriculture is a great way to spice up the science curriculum while teaching students about topics that still matter to education and to our lives.
University of Illinois student