Matter and Energy

Click letters and numbers to answer the question or type your answer in the text box and click Submit. You have 6 attempts to answer each question.

This game has a question on-screen along with the required character spaces. A panel at the bottom provides you with the letters of the English alphabet and numerals zero to nine. Click all the letters or numbers in the answer, or alternatively type in the answer and click the Guess the Answer button. After your sixth incorrect entry, the hangman fills in the answer for you. If you get it right, you're free of the noose and move on to the next question.

Click Start to begin.