Drue Hoffman

22 Flips | 3 Magazines | 1 Following | 5 Followers | @DrueHoffman | 8th grade science Teacher

What’s the most distant human object from Earth?

The most distant human object is now over 13 billion miles (21 billion km) from Earth.<p>The most distant human-made object is the spacecraft Voyager 1, …

Astronomy

10 Collaborative Mobile Apps For A Creative Classroom

Teachers that promote a collaborative environment help empower learning and teach useful life skills for their students. Mobile apps have made …

Education Technology

10 Ways to Use Screencasting for Formative Assessment

<i>Screencastify and Screencasting for Formative Assessment (a sponsored post)</i>From the Cool Cat Teacher Blog by Vicki DavisFollow @coolcatteacher on …

Frankenstein game teaches kids about science

It's been 200 years since Mary Shelley's Dr. Frankenstein created a creature in an experiment so gruesome it immediately became the stuff of horror legend.<p>But Shelley's tale is more than a scary fable. Thanks to a new interactive online experience, it's also a way to teach kids about …

Lunar trifecta: Rare 'super blue blood moon' will light the sky this week

<b>(CNN) —</b> Set your alarms, space fans -- if you can drag yourself out of bed on Wednesday, you're in for a treat.<p>The pre-dawn hours of January 31 will play host to an incredibly rare celestial convergence -- a "super blue blood moon."<p>To prepare you for the lunar triple whammy, here's your …

Super Blue Blood Moon

During the upcoming lunar eclipse: give your pupils a creative science/art photography challenge. #scichat #science #sciart https://t.co/v767gKmPFg

In Colorado, a glimpse of renewable energy’s insanely cheap future

Even with storage, new renewables beat existing coal.<p>This month, energy nerds are very excited about a utility bid solicitation.<p>Wait, hear me out. It really is exciting!<p>Usually, when we talk about how renewable energy will evolve in the next five years, we rely on analysts and projections. This is …

Renewable Energy

Australia stole a big chunk of land from Canada 1.7 billion years ago

We all learned back in geography class that what we see as present-day continents were once a big mashup of land that broke off into different …

A lunar eclipse is coming. Here’s how to watch the moon turn blood red in the sky.

Total lunar eclipses, explained.<p>On Wednesday, January 31, the full moon will pass through the shadow of the Earth. For 77 minutes, the usually silvery moon will be covered with a blood-red/ochre shadow.<p>Even more notable: This total lunar eclipse will happen during the second full moon this month — …

Astronomy

We Might Need to Redefine 'Planet' Again

You may think you know what a planet is, but celestial bodies often refuse to fully comply with our artificial human labels. We all thought tiny …

Universe

The Physics of Why Bigger Drones Can Fly Longer

You can get a drone in a wide range of sizes. Some of them fit in your palm (like the Syma X20) while others are quite large. But have you noticed …

Drones

Largest Earthquake in 3 Years Strikes Alaska

While many people in the lower 48 states were asleep, Alaska experienced its largest earthquake in over 3 years. A M7.9 earthquake occurred 280 …

Alaska's giant earthquake didn't have the moves to cause a large tsunami

The motion of the ocean(ic crust).<p>It started in the early hours of the morning, 31 minutes after midnight in Alaska. The shaking lasted for half a minute in places, rattling land hundreds of miles away from its underwater origins. Then came the sirens, screaming a warning for people to leave their …