Mrs. Henderson's class has five small, covered boxes. One contains perfume; another contains dried onions. There is also a box of pine needles, a box of lemon pieces, and a box with a paper towel wet with vanilla flavoring. Which should they do to get the best information about what is in each box? OPTIONS:
- Shake the boxes.
- Smell the boxes.
- Listen to the boxes.
- Weigh the boxes.
A: Smell the boxes.

John has diabetes. Which of the following should he be careful about eating or drinking? OPTIONS:
- beef
- eggs
- milk
- fruit juice
A: fruit juice

Which process causes light to bend and form a rainbow? OPTIONS:
- frequency
- resonance
- refraction
- reflection
A: refraction

Why does tapping a fork against a water glass produce a sound? OPTIONS:
- The air expands.
- The fork releases electrons.
- The particles in the objects vibrate.
- The water in the glass forms ripples.
A:
The particles in the objects vibrate.