Unit 1 Life Science Test

Juan wanted to see if different tires would make his model car go faster.  Juan correctly set up an experiment to test 4 different brands of tires on his model car.  He recorded his data in the data table.
How many times did Juan conduct the experiment using Brand C tires?

• One
• Two
• Three
• Four

The mass of the rock was taken on a triple beam balance and the measurement is shown.   What is the mass of the rock?

• 430.6 g
• 436.0 g
• 436.8 g
• 437.0 g

For scientific data to be considered accurate and reliable, most science experiments should be

• Conducted as many times as possible
• Conducted 3 times
• Conducted only 1 time
• Repeated no more than 2 times

The following table shows information about three different objects sitting on a bookshelf. Some data are missing from the table.
If object 3 has a gravitational potential energy of 196 J, what is its mass?

• 10 kg
• 196 J
• 1.0 kg
• 0.10 kg

Which of the following questions about oceans is a testable, scientific questions?

• How much salt is in a gallon  of ocean water?
• what is the best ocean for sight seeing?
• Are ocean fish tastier than freshwater fish?
• Is swimming in the ocean more fun than simming in a pool?

What is the basic unit of liquid volume in the metric system?

• Liter
• Gram
• Meter
• Degree Celsius

The International System of Units —

• involves multiplying and dividing by 2.8
• contains units based on multiples of 10
• contains units based on multiples of 10
• is a standardized system used only in the United States

When measuring the mass of a baby mouse, what metric unit should be used?

• Militer
• Degrees Celsius
• Gram
• Kilometer

What equipment would a scientist most likely use to measure the volume of a liquid?

• Ruler
• Graduated cylinder
• Triple beam balance
• Measuring cup

Scientists use computer models to study how black holes form in space. What is the
most likely reason a computer model is being used?

• black holes are too small to study
• black holes do not actually exist
• black holes are too far from Earth
• black holes are to dark to study