Home Planet/Air and Water
Solar Convection
In this activity from Lawrence Hall of Science, you'll use hot and cold water to see how fluids at different temperatures move around in convection currents. Be sure to share what you've learned about the sun and convection during Science Friday's Science Club, using the hashtag #ExplainTheSun. Age Level: 10 and up Time Preparation: 5 minutes Activity: 10 […]
A 20-Year Dive Into Climate Change History
Here at Science Friday, we’ve been listening to scientists discuss scientific ideas for more than 20 years. In that time, we’ve witnessed many new ideas gain traction in the scientific community. Climate change is one of them. A growing body of evidence suggests that higher levels of atmospheric carbon dioxide—generated from industrialization and pollution from […]
Picture of the Week: Capsizing Iceberg
In a fjord near Jakobshavn Glacier in Greenland, glaciologist Jason Amundson captured this 900-meter-high iceberg capsizing, ice crystals flaring up around it like stage smoke. A process like this can take about five minutes and send waves churning through the floating ice around it. “It sounds sort of like thunder, or trains in the distance,” […]
How Can We Clean Up an Oil Spill?
Do you want to try cleaning up an oil spill yourself? This experiment will help you understand why it is such a difficult task. All of the tools you will need are environmentally friendly and easy to find. Resource Type: Activity Grade Level: 6 – 12 Subject Area: Chemistry Topics: Observations, separating mixtures Time: 30 minutes […]
How Dense Is Snow?
Scroll down for a quick way to measure snow density, then get out there and start scooping! Density is a measure of the mass per unit volume of a substance. Think of it as the amount of mass that a substance packs into the space it takes up. You can calculate the density of any […]