You can use different tools to measure time, such as a clock, a timer, or a stopwatch. Short activities are measured in seconds, such as how fast you can do five star jumps. Some activities take a ...

Use the bottom of the measuring cup to press on the tablet and break it into about 6-8 pieces. As you start the stopwatch, slide the Alka-Seltzer tablet pieces down the crease of the paper into the ...