Science Tools and Safety
What tool is used to measure liquid volume?
Graduated Cylinder
What is a possible explanation that can be tested?
Hypothesis
What is the variable that changes on purpose?
Independent Variable
What is a model?
A representation that helps explain or show something.
What is an observation?
Using your senses to gather information.
Why do scientists wear goggles during experiments?
To protect your eyes from harm.
Which step comes after forming a hypothesis?
Conducting an experiment.
What is the variable that is measured or observed?
Dependent Variable
What is a scientific law?
A statement that describes a pattern in nature.
What is an inference?
A conclusion based on observations.
Which tool measures temperature?
Thermometer
What do you call the information you collect during an experiment?
Data
What stays the same in an experiment?
Constants
What is a scientific theory?
An explanation supported by evidence.
Why do scientists keep notebooks?
To record data and keep detailed notes.
If you spill a chemical, what should you do first?
Tell the teacher immediately.
What do scientists do to share their results?
Communicate or Publish
Why do scientists test one variable at a time?
So they know what caused the results.
How is a theory different from a law?
A theory explains why; a law describes what happens.
Why do scientists work together?
To share ideas and check each other’s work.
What tool helps you see very small objects or organisms?
Microscope
Why is repeating experiments important?
To make sure results are reliable.
In an experiment testing plant growth with different light colors, what is the independent variable?
The color of the light
Give an example of a scientific model.
Solar system model, diagram, or simulation.
What is the difference between qualitative and quantitative data?
Qualitative = descriptions, Quantitative = numbers