EMS Science 7 Chp 3 Review

The metric system of measurement is based on the number

• 1
• 10
• 12
• 100

The basic unit of length in the metric system is the 

• foot
• meter
• mile
• kilometer

If scientist cannot obtain exact numbers, they should rely on a (n)

• calculation
• estimate
• guess
• assumption

To determine how close to the true value an experimental value is, you would use

• a precision calculation
• a median
• significant figures
• a percent error calculation

The horizontal axis of a graph runs

• left to right
• up and down
• vertically
• diagonally

A line graph in which the data points do not fall along a straight line is called

• linear graph
• nonlinear graph
• circle graph
• bar graph

What are some reasonable safety precautions for field investigations

• None, no hazards in the field
• Always wear goggles 
• Be prepared & use common sense 
• Always go in the field alone

What is the first thing you should do if there is an accident in your classroom

• find the emergency equipment
• notify your teacher
• go to the hospital
• start first aid

A group of parts that work together is called a 

• technology
• system
• process
• feedback

The middle number in a set of data is the 

• mean 
• median
• mode
• significant figure