A popular song
of goodness knows when:
Tell me what makes the stars to shine, (or "Tell me why the stars do shine")
Tell me what makes the ivy twine,
Tell me what makes the sky so blue,
And I'll tell you why I love you.
The answers in order are:
Nuclear fusion makes the stars to shine,
Tropism makes the ivy twine,
Rayleigh scattering makes the sky so blue,
Glandular hormones are why I love you.
Score one point for each correct answer and deduct one for each incorrect answer. 3 to 4: very good, you must be an experienced noder. 1 to 2: good, but keep reading Everything. 0 or below: Put your mouse over the underlined words, click the button (on the mouse), and read what comes up. Repeat until you can score at least 1 when redoing the test.
I wish I could credit either the original song or the answering version, but I'm afraid I know neither.