chapter one

Is away to discribe the word with number

1. You can use a graduated cylinder to measure volume

2. You can use a thermometer to measure temperature

3. You can use a stopwatch to measure time

4. You can use a meter stick to measure length

5. You can use a balance to measure mass

6. You can use a spring scale to measure force

Is a skill based on previeus experience and is usful when you are in a hurry and exact numbers are not required

The estimation is usful when we are in hairy and exact number are not required

Because in many instances estimation used on a daily basis

Is a discription of how close measurement to each other

When you compare a measurement to the real actual or accepted value you are describing accuracy