It's About Time
Reflected Light
The lesson allows young scientists to use lasers and mirrors to study reflected light. A reading passage and homework question assess learning, while additional material introduces extension activities.
It's About Time
Refraction of Light
Don't shine like a diamond, refract light like a diamond. Young scientists use an acrylic block and a laser light to observe refraction. Advanced scholars figure the sine of the angles of reflection and incidence as well as mastering...
It's About Time
Curved Mirrors
Discover concave and convex mirrors using a laser light. Scholars experiment with real and virtual images before reading a handout and completing homework questions. Included extensions greatly benefit learners, so take advantage of the...
Curated OER
My Machine
Third graders explore how simple machines can affect their health and lifestyle. In addition, 3rd graders use their knowledge of simple machines to build a unique machine.
Curated OER
Proofreading Activity: "The Twentieth Century"
In this proofreading worksheet, students mark infinitives, prepositional phrases, subjects and verbs in a paragraph titled "The Twentieth Century,"then edit for missing commas.