In the blink of an eye -- in a second -- before dark -- How long does it take for something to happen and how do we measure that? How well can you know the answer?

Main pages in this section	Estimated time required
It's about time!	15 minutes
Getting up to speed	15 minutes
Nickel drop	15 minutes
Science content: Measuring things	15 minutes
Discussion of the unit on timing	30 minutes

Materials needed for this section

• Stopwatch*
• Time *
• A coin
• 1 box paper clips

Supplementary material:
Why study timing, and how we measure things?
About reaction time

Next section:Force