Scientific Method and States of Matter HW

This variable in an experiment is the one being changed on purpose by the scientist. 

• dependent variable
• independent variable
• data
• control group

In a controlled experiment, how many variables should be worked with at a time? 

• one
• none
• two or more
• however many makes sense

Isaac sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.  Identify the independent variable.

• distance traveled by the ball
• height of the ramp
• mass of the ball
• weight of the ball

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. The dependent variable is the _____.

• Diameter of the ball
• Force acting on the ball
• Height that the ball bounces
• Height from which the ball is dropped

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

• scientific method
• recipe
• data collection
• metric system

Maggie is studying how different colors of light affect the growth of plants. All of these things should be kept constant EXCEPT

• color of light
• type of plant
• amount you water the plant
• type of soil

Which state of matter has the most energy?

• gas
• solid
• liquid

Which state of matter has tightly packed molecules?

• solid
• liquid
• gas

Which state of matter has a definite shape?

• solid
• liquid
• gas

The state of matter that has no definite size or shape is

• Solid
• Liquid
• Gas