Review Station

The scientific method is a process used to study the world around us.

• True

• False

When designing an experiment how many variables should you change at a time?

• 1

• 2

• 4

• 5

Constants are things that are kept the same during an experiment to make sure that only the changes to the independent variable has an effect on the outcome of the experiment.

• True

• False

Describe the purpose of a control group in an experiment.

• To provide a baseline for comparison and to ensure that any changes observed are due to the independent variable

• To test the effects of multiple independent variables

• To manipulate the dependent variable

• To collect data on the dependent variable

What is the temperature at 8 AM?

• 15°F

• 55°F

• 50°F

• 60°F

Match the part of the graph with the correct description.

• degrees F

• units for the y-axis

• time

• x-axis

• temperature

• title

• temperature change

• y-axis

What is the coordinates for C?

• 60° N, 60° E

• 30° N, 60° E

• 60° S, 60° W

• 60° S, 60° E

Lines in the spectra of most galaxies shift towards the red of the spectrum. This is evidence that___

• galaxies are moving away from each other in a constantly expanding universe

• the largest galaxies are slowly engulfing their smaller neighbors

• galaxies were once part of one huge mega galaxy

  galaxies were once part of one huge mega galaxy

• an explosion will one day result from the pressure building as the galaxies expand

  
  

What shape is the milky way galaxy?

• star

• spiral

• irregular

• circle

Nebulas are made of...

• dirt

• stars

• clouds of gas and dust

• asteroids