Unit 1 APSL Review

What 2 tools do you need to find the density of an irregular object?

• beaker & graduated cylinder

• electronic scale & graduated cylinder

• metric ruler & electronic scale

What is the volume of the liquid in this graduated cylinder?

• 19 mL

• 35 mL

• 24 mL

What is the base unit for measuring length?

• Liter

• Gram

• Meter

What INSTRUMENT is used to measure LENGTH in the metric system?

• thermometer

• watch

• metric ruler

What is the length of this crayon in millimeters

• 7 cm

• 7 mm

• 71 mm

What is an observation?

• Something you measure or detect with your senses.

• The way you feel about something

• An educated guess

An inference is based on:

• both scientific observations and known facts

• known facts

• scientific observations

What is a hypothesis?

• An educated prediction or answer to a testable question

• A random guess

• 

This is the last step in the scientific method

• Draw a conclusion

• Record your data as results

• Share what you have learned with others (communicate results)

Testing a hypothesis often involves a(n):

• answer

• experiment

• problem