What are time-measuring devices?

Time-measuring devices are tools that help us know how much time has passed.

Imagine you're playing a game of tag at recess. You want to know who ran the fastest, so you use a timer, it starts when someone begins running and stops when they reach the end. That’s like a simple time-measuring device!

Some time-measuring devices are like clocks, which tick steadily just like your heartbeat. You can see the numbers change as minutes and hours pass by.

Other ones, like a stopwatch, are like a race between two friends, you press one button to start the race and another to stop it when they're done.

You might use a sand timer at home, it’s like magic sand that flows from top to bottom. When all the sand has fallen, you know exactly how much time has passed!

Just like you count your steps to see how far you’ve walked, time-measuring devices help us count seconds, minutes, and hours so we can plan our days better!