How Big Is Our Universe?
Interactive

How Big Is Our Universe?

Astronomical distances can be difficult to comprehend. The star nearest to Earth, our Sun, is about 150 million kilometers (93 million miles) away. The next closest star system is about ...
Grades 3-12
Provided by:
WGBH
How Big Is the Universe?
Document

How Big Is the Universe?

How big is the universe? Long considered one of the most perplexing questions, it's on the minds of many astronomers these days. Some even think they can answer it ...
Grades 6-12
Provided by:
NOVA
Hubble's Expanding Universe
Video 00:04:14

Hubble's Expanding Universe

Astronomer Edwin Hubble determined two things that shook the foundations of astronomy: billions of galaxies exist outside of our own ...
Grades 6-12
Provided by:
NOVA
Our Knowledge of the Universe
Lesson Plan

Our Knowledge of the Universe

Students investigate the history of astronomy to see how major conceptual and technological advances have sculpted the current view of ...
Grades 9-12
Provided by:
WGBH
Life's Big Questions. How Did the Universe Begin? | Scientific American Frontiers Teacher's Guide
Webpage

Life's Big Questions. How Did the Universe Begin? | Scientific American Frontiers ...

How Did the Universe Begin?. Astronomers study ancient galaxies through the lenses of the world ...
Grades 6-12
History of the Universe
Interactive

History of the Universe

This interactive timeline from the NOVA Web site recaps what has happened since the theorized "Big Bang", including the birth of the earliest galaxies and of our own Sun, and ...
Grades 6-12
Provided by:
NOVA
Evolution of the Universe
Video 00:03:12

Evolution of the Universe

NASA’s James Webb Space Telescope is helping scientists understand when and how early stars formed, what early galaxies looked like, and how the early universe shaped its underlying structure ...
Grades 9-12
Provided by:
NASA
WMAP: "Baby Picture" of the Universe
Image

WMAP: "Baby Picture" of the Universe

The cosmic microwave background — a nearly uniform distribution of radiation that pervades the sky — is a remnant from the Big ...
Grades 9-12
Provided by:
WGBH
Marty Mlynczak Discusses How Our Atmosphere Breathes the Sun's Energy
Audio 00:01:29

Marty Mlynczak Discusses How Our Atmosphere Breathes the Sun's Energy

When the solar wind strikes our atmosphere, the atmosphere expands and later contracts again. Listen ...
Grades 7-13+
Provided by:
UEN
Global Energy and Carbon: Tracking Our Footprint - Energy and Carbon: The Big Picture
Video 00:02:34

Global Energy and Carbon: Tracking Our Footprint - Energy and Carbon: The Big ...

In the modern world, energy use and carbon footprint go hand in hand with quality ...
Grades 5-13+
Provided by:
Prairie Public
How Windy Is It? | Cyberchase Activity
Webpage

How Windy Is It? | Cyberchase Activity

Make a wind gauge and measure wind speed around your neighborhood.
Grades 3-6
How Rare Is the Earth?
Document

How Rare Is the Earth?

What are the chances that there are many other planets in the universe as hospitable to intelligent life as ours? Peter Ward, a paleontologist at the University of Washington and ...
Grades 9-12
Provided by:
NOVA
7 Big Ideas: Rethink
Document

7 Big Ideas: Rethink

Izz, Dex, and Dad, from The Greens, discuss how to RETHINK things, in order to be more environmentally friendly. Rethinking is one of 7 big ideas for cleaning up our ...
Grades 1-4
Provided by:
WGBH
Building Big
collection

Building Big

Learn about engineering, architecture, and the science behind bridges, domes, tunnels and more structures in this series, Building Big. 

Provided by:
Building Big
How Big Is the Oil Spill?
Video 00:02:26

How Big Is the Oil Spill?

In this video adapted from Need to Know, artist Steve Brodner uses simple drawings to compare the size of the 2010 BP oil spill to more familiar things, like a ...
Grades 6-12
Provided by:
WGBH
How Big Are You?
Interactive

How Big Are You?

In this "Dinosaur Train" game, kids try to estimate the length of various dinosaurs using modern animals as non-standard units of measurement. It shows that dinosaurs were different sizes and ...
Grades PreK-2
Provided by:
Dinosaur Train
How Large Are the Planets?
Video 00:02:47

How Large Are the Planets?

Explore the relative sizes of the planets in our solar system in this video adapted from NOVA. Host Neil deGrasse ...
Grades 6-12
Provided by:
NASA
Center for Sustainability at Penn State University Tour
Interactive

Center for Sustainability at Penn State University Tour

In this Flash interactive a guide to the Hybrid Homestead introduces "ecological footprint" or how ...
Grades 6-12
Provided by:
WPSU
How to Transform Energy System to Help Climate
Audio 00:01:30

How to Transform Energy System to Help Climate

Listen to Robert Socolow of Princeton University explain how we have the incredible challenge of living well, while we transform ...
Grades 7-13+
Provided by:
UEN
Evidence for the Big Bang Theory
Video 00:04:59

Evidence for the Big Bang Theory

The study of the origin and evolution of the universe has not always been regarded as science. It wasn't ...
Grades 9-12
Provided by:
NOVA
Antarctica's Climate Secrets
collection

Antarctica's Climate Secrets

Is global warming melting Antarctic ice at an unprecedented rate? Will it raise sea levels, flooding the world's coastlines ...