Test 1 review M/D/V and Sci. Method Oct 2021

A testable explanation to a problem that has not yet been tested.

• data

• theory

• hypothesis

• fact

The name of the information that you get from your experiment (you organize it into charts and graphs).

• observations

  conclusion

• data

• variables

• hypothesis

Look at this image.  Which object has the LOWEST density in water? How? 

• The Ping Pong Ball because it floats to the top 
• The bolt because it has sunk to the bottom
• The soda cap because it is not just full of air like the Ping Pong ball

What is mass?

• the force of an object caused by gravity

• the amount of space something takes up

• the amount of matter in an object

• how fast something is moving

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

• scientific method

• recipe

• data collection

• metric system

Dependent variable means

• the scientist controls what to test

• educated guess

• ask a question

• what is being measured

If a piece of matter changes shape, what happens to its mass?

• It increases

• It decreases

• it changes randomly

• it stays the same

If you increase the amount of spinach you eat, then you will increase the iron in your blood.

What's the dependent variable?

• increase the amount of iron in your blood

• spinach you eat

Which of the following is NOT a testable question?

• How do rockets work?

• Does fertilizer help plants grow bigger?

• Does heart rate increase with exercise?

• Does the freezing point of water change at different elevations?

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

• 19 mL 
• 35 mL 
• 24 mL 
• 1.9 mL