# data[].attributes.body
Choose any article, then write a CER about what the article was trying to claim.

Remember:

Claim, Evidence, Reasoning

# data[].attributes.attachment_link.description
Science News features daily news articles, feature stories, reviews and more in all disciplines of science, as well as Science News magazine archives back to 1924.

# data[].attributes.body
Complete the Word Safari!

# data[].attributes.attachment_link.title
Word Safari: International Polar Bear Day

# data[].attributes.attachment_link.description
In honor of International Polar Bear Day (February 27), let’s see what a good word hunter you are! In the grid below, there are 15 words associated with polar bears. Can you find them? Remember to look up and down, forward and backward, and even diagonally. When you find a polar bear term, use your…

# data[].attributes.body
Choose a video or article to learn about a topic in genetics!

# data[].attributes.attachment_link.description
Learn.Genetics visitors, We're asking for your help. For over 20 years, the Learn.Genetics website has provided engaging, multimedia educational materials at no cost. Learn.Genetics is one of the most-used science websites. Tens of millions of visitors come to our site each year to find the science and health information they're looking for.

# data[].attributes.body
We will be watching some of these videos throughout the year. If you want to watch a particular one think about how you would write a CER about it.

If you think you need practice writing CERs then choose a video and practice :D.

# data[].attributes.attachment_link.keywords[]
science universe space "black hole" life virus climate history education evolution biology humanism

# data[].attributes.attachment_link.description
Animation videos explaining things with optimistic nihilism since 12,013. We're a team of illustrators, animators, number crunchers and one dog who aim to spark curiosity about science and the world we live in. To us nothing is boring if you tell a good story.

# data[].attributes.body
Help AI research get better at recognizing doodling.

# data[].attributes.attachment_link.description
Can a neural network learn to recognize doodles? See how well it does with your drawings and help teach it, just by playing.

# data[].attributes.body
Learn about microscopic life.

# data[].attributes.attachment_link.title
Microscopy-UK Home (Resources for the microscopy enthusiast and amateur, including free bimonthly e-zine, Micscape.)

# data[].attributes.attachment_link.description
The Home of Enthusiast Microscopy on the Web!

# data[].attributes.attachment_link.description
A simple but addictive game. Start with four basic items and use them to find dinosaurs, unicorns and spaceships!

# data[].attributes.body
Learn how people used to think elements worked (and realize that chemistry explains our world quite a bit better)

# data[].attributes.attachment_link.readable_text
How do celestial bodies warp the fabric of space-time and interact with each other?

Create an object to begin exploring.

This experiment works best in Chrome, Firefox, or Safari. Download the latest version of one of these browsers to begin.

Create your universe Download Chrome

National Science & Technology Medals Foundation Powered By

National Science & Technology Medals Foundation Powered By

Press and hold to create an object

Press, hold, and flick to add velocity

Observations

Runaway planet! That object's velocity is faster than any nearby gravitational force.

How fast does a rocket need to travel to leave Earth? Any projectile must reach a speed of seven miles per second to break free of our planet's gravity.

The gravity on Mars' moon, Deimos, is so low that if you jumped you could reach escape velocity!

Your object attained escape velocity. Its initial kinetic energy was large enough to escape from the gravitational energy well of the larger object. Space probes that completely escape from the earth's gravity and travel to other planets are examples of vehicles that achieve escape velocity.

You've created a binary system. These two celestial bodies weave around their common center of mass.

When you look up at the night sky, at least half of all the stars you see are binary stars orbiting one another.

You created an orbit. Orbits are like the Goldilocks of space, set in motion only when mass, distance, and velocity are just right. Orbits or often circular or elliptical. The earth's orbit around the sun, for example, deviates less than 2% from a circle.

Communications satellites aren't the only man-made objects orbiting Earth. Astronauts have left behind tools, gloves, and other space junk that might still be floating around.

Typically comets have elliptical orbits. These "dirty snowballs" come from the outer edge of the solar system, pass near the sun where they start to melt and produce a long tail, then return to the edge of the solar system where they refreeze.

Your object failed to attain escape velocity. Its initial kinetic energy was too little to escape from the gravitational energy well of the larger object. Rockets and missiles that return to earth are examples of vehicles that do not achieve escape velocity.

During the early days of our solar system, there were lots of collisions. The scattered debris mostly formed back together or attached to planets.

Don't worry. Nowadays our solar system is stable, and planets are unlikely to collide. However, you still need to watch for dangerous asteroids!

Some collisions don't break things apart but leave impact craters. Mars has been shaped by impact. Its northern half is smooth and low, its southern half mountainous and rough -- so different they're like two separate planets!

According to Newton, the larger the mass of objects and the shorter the distance between them, the stronger the attraction.

Objects move proportionately to their mass. Tiny planets move great distances. Massive planets may only wobble.

When slow-moving celestial bodies collide, they might fuse together and enlarge, increasing from a few kilometers to a few hundred kilometers in diameter.

Earth-like planets begin as particles formed from the collision of gas and dust and grow by accretion. A mature planet can take thousands or even millions of years to form.

Notice how the universe distorts when a object forms or grows in size? According to Einstein, all celestial bodies warp the fabric of space-time. The resulting curves are gravity.

Two celestial bodies of different masses have distinct effects upon space-time. A massive object creates a greater distortion of space-time and can shift the path of smaller objects if they're close enough.

Gravity penetrates everything and holds the galaxy together.

Everything in the universe - moons, planets, particles, galaxies, even light - is drawn towards everything else by the force of gravity.

Your planetary collision has created a moon, or natural satellite. Moons can be anywhere from centimeters to thousands of kilometers in width.

Over 4 billion years ago, something the size of Mars bumped into Earth and left behind the moon that orbits us.

Moons can also be captured by a hefty planet's gravitational pull. The largest irregular moon in our solar system is thought to be Neptune's moon, Triton, which originated in the Kuiper belt of comets.

Orbit shapes are typically ellipses. Orbiting objects zip towards a gravitational center and slow when pulling away.

An orbit system is a gravitationally-bound collection of celestial bodies.

The Sun is the center of planetary orbit in our solar system. But each planet has its own gravitational field, and most have their own natural satellites.

How do celestial bodies warp the fabric of space-time and interact with each other?

We tend think of gravity as a force of attraction, but it's also been described as a curvature of space-time in the presence of mass. This National Science and Technology Medals Foundation interactive invites you to bend the fabric of space-time and observe the resulting gravitational forces. By adjusting the variables of mass, distance, and velocity, you can trigger orbits, collisions, and escape velocities in space.

The National Science and Technology Medals Foundation celebrates the amazing individuals who have won the highest science, technology, engineering, and mathematics award in the United States.

# data[].attributes.attachment_link.description
How do celestial bodies warp the fabric of space-time and interact with each other? Create an object to begin exploring. This experiment works best in Chrome, Firefox, or Safari. Download the latest version of one of these browsers to begin.

# data[].attributes.attachment_link.description
Tangible Interaction Design and Learning Lab at Northwestern University

# data[].attributes.body
What are the ramifications of this? Would you consider these to be actual Dire Wolves?

# data[].attributes.attachment_link.title
The First Dire Wolf Howl in Over 10,000 Years