Stars
Step 1. Questions
“Twinkle, twinkle little star…” goes the classic children’s song. Now that you are older and wiser you should know that stars don’t twinkle and they certainly are not little! Actually, if you were to hollow out our Sun, which is a medium-sized star, you could fit more than 1 million Earth-sized planets inside!
The stars have fascinated people throughout human history. Stop for a moment and gaze up at the night sky. You will only see a small portion of the billions upon billions of stars in our universe. The part of the sky you see is called your celestial sphere. Ask yourself what you would like to know about the stars. How big are they? How old are they? What are they made of? What are their names and which ones form constellations? There is so much to discover about these magnificent celestial bodies. Add these questions to your own list to help you begin your investigation:
- What are stars made of?
- How do scientists classify stars?
- What is the life cycle of stars?
- What can scientists learn from a star’s light? Why do stars seem to twinkle?
- What are the characteristics of the Sun?
By using the following Web sites you can answer these questions, as well as some of your own. When your research is complete, use the steps that follow to develop a written report presenting your findings.
Step 2. Research
Research answers for the questions you were asked in Step 1. Visit these Web sites. Take notes about them on this page, too!
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