E = mc² Puzzle

Einstein's Big Idea homepage

Facilitation Tips

Be a problem-solver like Albert Einstein! First, complete the crossword. (Use the jumbled word bank for extra hints.) Then rearrange the letters in the circled spaces to answer this riddle:

Einstein often talked about keeping things simple, in science and in life. What did Einstein decide was "just a waste of time," and so he stopped using them?

___ ___ ___ ___ ___

Across
2. Scientists can win this famous prize for outstanding work.

6. As a child, Einstein was fascinated by this object that always points north.

7. E = mc² explains how the ______ shines. Atoms inside are squeezed together into new atoms, and some of their mass is converted to energy.

8. Einstein was born in this country, whose capital today is Berlin.

9. E = mc² explains how the radioactive material inside an ______ sign gives off a red glow.

Down
1. Einstein enjoyed playing this musical instrument.

3. In Einstein's famous equation, E stands for ______.

4. Einstein predicted that building nuclear weapons would be a ______ business.

5. Squaring a number means multiplying it by ______.

6. Marie ______ investigated radioactivity with her husband, Pierre.