Students first get introduced to the concepts of pure substances and mixtures, and the particle theory by doing a photo-hunt for matter in their home and exploring the world of particles through images from electron microscopes. Then students design their own experiments following the scientific method to answer questions about the properties of matter. Scaffolding can be used to encourage gradual release of responsibility for choices of materials and methods. In a second activity, students are required to design and build a water purifying system using basic materials to separate the various ‘pollutants’, with a focus on disposal of the ‘refuse’ of the experiment in an eco-sensitive manner.
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Teacher Demo/Student Activity: Conductor vs. Insulator
Categories: Lab/Student Activity, Teacher Demonstration
In this demo, a polyethylene strip is charged by rubbing with wool. The strip is then used to test what happens to the flow of charge when the strip is placed in contact with a conductor (iron nail)... read more
Teacher Demo/Student Activity: Powder Disaster
Categories: Lab/Student Activity, Teacher Demonstration
Flour is an ingredient that is found in most kitchens and used regularly for baking and cooking. Consequently, it is considered safe, and people do not regard the potential hazards. In reality, flour... read more
Unraveling the Earth
Categories: Lab/Student Activity, Lesson Plan, Unit Plan
This unit focuses on students' approach to earth elements (sand, soil, rocks, minerals, and fossils) with various materials. Teachers can observe students with earth elements and manipulatives to... read more