How Distant is the Moon? Part 2
Students listen to a lecture that presents one of two methods by which ancient Greek astronomers estimated the distance to the Moon. They discuss Hipparchus's theories about solar eclipses.
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Renewable Energy Sources - Solar and Wind
There has been a huge solar energy spill! Let's go outside to play in it. This lesson includes multiple experiments showcasing solar and wind energies. Scholars build a solar heater and an anemometer before testing the results. The...
9th - 12th Science CCSS: Adaptable
Transportation and Space: Reuse and Recycle
What can I use in space? The three-lesson unit has groups research what man-made or natural resources would be available during space exploration or habitation. Team members think of ways that resources can be reclaimed or reused in...
10th - 12th Science CCSS: Adaptable
Weather Fronts—Movement of Cold and Warm Air
On a hot summer day, in a two-story home with no air conditioning, the coolest place is in the basement and the warmest place is on the second floor. See how warm air rises and cool air sinks through a hands-on activity. Class...
9th - 12th Science CCSS: Designed
Energy and Biomass Pyramids
Young scientists play tag as they act out the food pyramid in the ocean ecosystem. Energy circles pass from the smaller prey to the predators and at the end of the activity, a data chart and analysis questions allow pupils to apply their...
6th - 10th Science CCSS: Adaptable
New Review Reproductive System – Male Reproductive System (Part 2)
The narrator of this short video about the male reproductive system begins by comparing egg and sperm. He then discusses how sperm is produced, how and which hormones play a role in sperm production, how sperm mature, and how they leave...
11 mins 9th - 12th Science CCSS: Adaptable
Urinary System (Part 2)
The narrator of this video details the urinary system by looking at how bodies regulate the production of urine and how urine is stored and excreted from the body. The narrator finishes by discussing the nervous system's role in the...
10 mins 9th - 12th Science CCSS: Adaptable
What Happens When You Remove the Hippocampus?
Imagine not being able to remember what day it is or what food you had for breakfast this morning. This nightmare was a reality for Henry Molaison, whose life story is the focus of this video explaining how different parts of the...
5 mins 9th - 12th Science CCSS: Adaptable
Density Column Lab - Part 2
Groups suspend objects within layers of liquids to determine the densities of different liquids and compare them to the densities of objects calculated in Part 1. The groups then carefully test their calculations by layering the liquids...
7th - 9th Science CCSS: Designed