8th Grade Unit 1 Digital Review

Multiple Choice

The one factor that a scientist controls during an experiment. This goes on the x-axis.

• Independent Variable

• Dependent Variable

Multiple Choice

What type of graph is this?

• Bar graph
• Histogram
• Pie Chart
• Stem Chart

Multiple Choice

What conclusions can you draw from this graph?

• The deer population went down over time.

• The deer population went up over time.

• The deer population went up quickly, then down, but then stayed the same.

• There are less deer because of hunters

Multiple Choice

What data does this graph represent?

• Change in temperature of a liquid over time in 3 different containers

• How temperature can change the molecules in a material

• The phase changes of a material

• What type of container people use the most to store hot liquids.

Multiple Choice

What information could you get from this graph?

• how much water is on Earth

• the percentage of the Earth that is covered in water

• how land is available on Earth

• how tall the highest mountain is

Multiple Choice

Changes in the _________ variable causes changes in the _________ variable.

• independent; dependent
• dependent; independent

Multiple Choice

What is the carrying capacity of this population?

• 100
• 200
• 300
• 400

Multiple Choice

How many push-ups were done on Monday?

• 5
• 10
• 15
• 20

Multiple Choice

There are two types of data. Which type of data involves descriptions that cannot be counted or measured?

• qualitative
• quantitative

Multiple Choice

This data set shows that

• there is more CO2 in the atmosphere now than ever before
• Hawaii will be most affected by global warming
• global temperatures are rising
• there is more CO2 in Hawaii than anywhere else

Multiple Choice

( Fill in the blank) Long hair should be ____________ in the laboratory.

• tied back

• cut

• down

• curled

Multiple Choice

(True or False) It is okay to pick up broken glass with your bare hands as long as the glass is placed in the trash can

• true

• false

Multiple Choice

You are heating a substance in a test tube. Always point the open end of the tube

• towards your body
• toward your lab partner
• towards another classmate
• away from all people

Multiple Choice

Keeping your work area neat and clean is important because:

• My teacher is a neat-freak
• I won't lose my supplies in the clutter.
• It keeps the room from looking messy.
• It helps prevent accidents.

Multiple Choice

The following footwear is the best in the laboratory

• sandals

• open-toed shoes

• closed-toe shoes

• shoes appropriate for the weather

Multiple Choice

When is it OK to eat or drink at the lab tables?

• Always

• Only during group work, not during labs

• Never

• Whenever I'm hungry

Multiple Choice

What safety symbol is this? 

• biohazard
• radiation
• toxic
• corrosive

Multiple Choice

What safety symbol is this?

• Eye Protection
• Clothing Protection
• Hand Protection
• Heat Protection

Multiple Choice

What safety symbol is this?

• Clothing Protection
• Hand Protection
• Eye Protection
• Sharp Object Hazard

Multiple Choice

What safety symbol is this? 

• Electrical Safety
• Animal Safety
• Heat Protection
• Sharp Object Hazard

Multiple Choice

What does this symbol indicate?

• Corrosive substances are present; protect your hands.
• Wash your hands.
• Extreme temperatures are present; wear appropriate gloves.
• Bacteria are present.

Multiple Choice

What does this symbol indicate? 

• Fumes are present; ventilation required.
• Fumes are present; inhale deeply.
• Moisture is condensing; use a test tube to collect. 
• Spill safety.

Multiple Choice

What safety symbol is this? 

• corrosive
• toxic
• radiation
• biohazard

Multiple Choice

A possible explanation to a problem that has not yet been tested. Educated guess.

• data

• theory

• hypothesis

• fact

Multiple Choice

What step does every scientific experiment begin with?

• hypothesis

• question/problem

• procedures

• conclusion

Multiple Choice

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent variable is ...

• type of plant

• the amount of sunlight

• the type of music

• the type of liquid

Multiple Choice

A student wants to test the effects of type of exercise on heart rate. What is the dependent variable?

• time of day exercise occurs

• amount of exercise

• heart rate

• type of exercise

Multiple Choice

How do scientists prove their claim?

• With a story

• With evidence

• With an experiment

• With an essay

Multiple Choice

A testable question should include what two things?

• A hypothesis and question

• A question and a dependent variable

• An independent variable but no dependent variable

• An independent variable and a dependent variable

Multiple Choice

A series of steps used by scientists to solve a problem or answer a question. 

• scientific method
• recipe
• data collection
• metric system

Multiple Choice

The independent variable is

• The variable that you change in an investigation

• The variable that you measure in an investigation

• A variable that you keep the same in an investigation

Multiple Choice

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

• independent variable

• dependent variable

• control variable

Multiple Choice

What is a constant/control in an experiment?

• Things that do not change in a experiment. It's the variable that stays the same. You can have many variables stay the same.

• It's the variables that the scientist changes in the experiment

• It's the variables that are being measured in an experiment

Multiple Choice

This is a ______________.

• beaker

• telescope

• microscope

• spring scale

Multiple Choice

• safety goggles

• microscope

• hand lens

• metric measuring tape

Multiple Choice

What is this science tool?

• jar
• beaker
• thermometer
• ruler

Multiple Choice

This piece of lab equipment is called a ___________________.

• triple beam balance
• spring scale
• thermometer
• graduated cylinder

Multiple Choice

This piece of lab equipment is called a _______________.

• beaker
• spring scale
• graduated cylinder
• thermometer

Multiple Choice

Name the tool pictured. It does contain measurement lines.

• Pipette

• Eye dropper

• Tweezer

• Forceps

Multiple Choice

what is the name of this tool?

• erlenmeyer flask

• florence flask

• beaker

• graduated cylinder

Multiple Choice

• Scissors

• tongs

• ring stand

• buret clamp

Multiple Choice

identify the following lab equipment

• glass triangle
• funnel
• stirring rod
• buret

Multiple Choice

What is the name of the following tool?

• test tube clamp

• test tube cylinder

• test tube rack

• test tube apparatus

Multiple Choice

Name this piece of lab equipment

• hot plate
• flame thrower
• heater
• bunsen burner