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Categories: Lab/Student Activity, Teacher Demonstration
This demo shows how flakes of iron can be extracted from iron-fortified cereals with the use of a strong magnet. The demo shows a physical separation process and provides students with a good example of how one component (the iron) can be separated from a heterogenous... read moreCategories: Teacher Demonstration
This demonstration reviews the concept of density. It examines why certain objects float or sink in water and highlights some interesting information about cola versus diet cola soft drinks. read moreCategories: Teacher Demonstration
In this demonstration, a peeled potato is cut into the form of a candle and an almond slice is used as the candle’s “wick.” The teacher lights the almond slice on fire and it burns. The students see the object, and make observations about it. Then the teacher blows... read moreCategories: Teacher Demonstration
Although all students know that it is essential to wear safety goggles during many science investigations, it can be helpful to provide a powerful demonstration showing why this is so important. This quick and easy demonstration can illustrate the necessity of... read moreCategories: Lab/Student Activity
This demonstration emphasizes how we can make predictions based on patterns. A jigsaw puzzle is used as an analogy for the periodic table. Just as Mendeleev left gaps in his original periodic table, gaps are left in this jigsaw puzzle and just as he hypothesized the... read moreCategories: Lab/Student Activity
Predator–prey relationships are one of the most important biotic relationships in the sustainability of an ecosystem. Predators are the natural controls in an ecosystem, limiting the size of a prey population. Many studies have illustrated that the long-term... read moreCategories: Lab/Student Activity
Students typically come into the classroom with some base knowledge about biology, whether it is prior learning at home, in previous courses or from personal experience. Differentiating learning based on students’ previous knowledge can be a challenge in a large... read moreCategories: General Interest, Teacher Demonstration
Students watch the teacher demonstrate the OJ powered clock. The teacher guides students to wonder what they could change to make the clock work. They do some brainstorming and then the next period, they try it out themselves. There are some optional pre-lab... read moreCategories: General Interest, Unit Plan
Students will be creating a green screen report on Animals. They will work individually or in small groups (2-4) depending on student needs and technology availability. They will learn how to research using online tools available and library resources about the... read moreCategories: Lab/Student Activity
Students watch a documentary about ecosystems. They then blog about the subject and investigate one problematic and post their results on a blog. Other Resources:... read more