• The immense gravity of the sun causes hydrogen to turn into helium.
• Nuclear fusion is the energy source for the sun.
• Elements that make up the sun are primarily hydrogen and helium.
• Layers of the sun – corona, chromosphere, photosphere, convective zone, radiative zone and core.
• The source of energy is the core of the sun and nuclear fusion happens in it.
• The Astronomical Unit is an average of 93 million miles, or 8.3 light minutes.
• Several occurrences happen on the sun: sun spots, solar flares, prominences and solar wind. 
• If your students cannot meet the above criteria, they may not be ready for these Boom Cards just yet. We recommend you start them out with our Layers of the Sun lesson first. This resource will prepare your students for these Boom Cards.

How Boom Cards Work:

• This resource contains a PDF file for you to download with a provided link. This link will direct you to the Boom Learning website.
• Don’t have an account? No problem! Set up a FREE account with Boom Learning then add this resource to your library.
• Set up a classroom to assign these cards to your students.

What Do I Need to Use these Boom Cards?

To use Boom Cards, you must be connected to the Internet. Boom Cards play on modern browsers (Chrome, Safari, Firefox, and Edge). Apps are available for modern Android, iPads, iPhones, and Kindle Fires. For security and privacy, adults must have a Boom Learning account to use and assign Boom Cards. You will be able to assign the Boom Cards you are buying with “Fast Pins,” (a form of play that gives instant feedback to students for self-grading Boom Cards). For assignment options that report student progress back to you, you will need to purchase a premium account. If you are new to Boom Learning, you will be offered a free trial of our premium account. Read here for details: http://bit.ly/BoomTrial.

How Many Devices Can Access Boom Cards?

A single license is good for one teacher and his or her students. This means you can use this on as many devices as you like. They can even be assigned as homework or on Flexible Instruction Days.