Is this a "testable question"--
Which flavor of Capri Sun do 4th graders prefer?
No, it is not a testable question. It does not measure the affect of an independent variable on a dependent variable.
100
Is this a hypothesis:
If I increase the height of the ramp then the speed will increase because the height will increase the rate of acceleration.
Yes, it is a hypothesis. It follows the If, Then, Because format.
100
What variable must remain the same in the investigation?
Independent
Dependent
Controlled
Controlled variable
100
What kind of materials easily transfer heat?
Give two examples.
Metals-- aluminum, iron, copper, steel
100
True/false
When you research something you look for pictures and opinions.
False, when you research you look for FACTS.
200
Is this a "testable question"--
How does the amount of sugar affect the freezing temperature of a liquid?
Yes, it is a testable question.
200
Is this a hypothesis:
I think colder water will make ice melt slower.
Not a hypothesis. Does not follow the If, Then, Because format.
200
Which variable is measured?
independent
dependent
control
The dependent variable (d) is measured.
200
How does heat transfer in thermal conduction?
Currents
The sun
Direct contact
Thermal conduction is heat transfer by direct contact.
200
True/False
The experiment can be done once or twice to get good results.
False-- The procedures should be followed 5 times to get valid results.
300
State the format for a testable question.
How does ____________________________?
How does i affect d ?
300
Is this a hypothesis:
The speed of the skateboard on the highest ramp is 18 miles per hour.
Not a hypothesis. Does not follow the If, Then, Because format.
300
Which variable is changed?
independent
dependent
control
Independent variable
300
Which of the following is not a good conductor?
A metal cup
A plastic spoon
A copper wire
A plastic spoon-- plastic is a good insulator, not a conductor
300
Why do you write down your procedures?
Because your teacher told you to
To remember your materials
So other scientists can duplicate the investigation
You document your procedures so that others can follow the steps to verify your results.
400
Use the following variables to create a testable question:
height of ramp
speed of skateboard
How does the height of a ramp affect the speed of a skateboard?
400
Use the following to create a hypothesis:
(Remember to use the If, Then, Because format)
Plants in sunlight
Grow taller
Plants use sunlight to grow
If you put plants in sunlight then they will taller because plants use sunlight to grow.
400
Name the independent and dependent variables in the following question:
How does the height of the ramp affect the speed of a skateboard?
Independent-- height of ramp
Dependent-- speed of skateboard
[How does i (height) affect d (speed)?]
400
Which of the following are good insulators?
(Choose all that apply)
A styrofoam cup
A metal spoon
A plastic mug
A ceramic bowl
Styrofoam cup, plastic mug, & ceramic bowl are all good insulators.
400
True/False
The conclusion of the experiment is presented in graph form.
False-- The conclusion is a written reflection on the investigation including the original question, hypothesis, results, explanation and inferences about your results.
500
Use the following variables to create a testable question:
melting rate of ice
temperature of water
How does the temperature of water affect the melting rate of ice?
500
Use the following to create a hypothesis:
(Remember to use the If, Then, Because format)
Ice Cube on a metal plate
Metal is a good conductor of heat
Melt faster
If you put an ice cube on a metal plate then it will melt faster because metal is a good conductor of heat.
500
Name the independent and dependent variables in the following question:
How does the amount of light affect the growth of a sunflower seed?
Independent-- amount of light
Dependent-- growth of seed
[How does i (light) affect d (growth)?]
500
Heat energy travels from
inside to outside
warmer area to colder area
colder area to warmer area
Heat energy travels from colder area to warmer area.
500
True/False
Your experiment is a failure if your hypothesis is incorrect.
False-- scientists learn many things from failed investigations as well as successful ones.
"I haven't failed. I've just found 10,000 ways that don't work." -- Thomas Edison