Understanding Science
A possible explanation for an observation that can be tested by scientific investigations
What is a hypothesis?
The metric base unit for length
What is a meter?
Graphs show ________________ between two or more things.
What are relationships?
You have been injured in the laboratory (cut, burn, etc.). First you should...
What is tell the teacher?
I can be used to measure the volume of liquids.
What is a graduated cylinder?
A rule that describes a repeatable pattern in nature
What is a scientific law?
The prefix that represents 1/100 or 0.01
What is centi-?
This graph is the best choice if you want to compare data.
What is a bar graph?
Horseplay or practical jokes in the laboratory are
A. always against the rules.
B. okay.
C. not dangerous.
D. okay if you are working alone.
A. always against the rules.
I can be used to find the mass of a substance. Adjust the rider beams, starting with the largest, and add up the numbers.
What is a triple beam balance
Using your senses to gather information and take note of what occurs.
What is observation?
The metric base unit for volume
What is a liter?
This graph is best for showing change over time.
What is a line graph?
If you do not understand a direction or part of a lab procedure, you should
A. figure it out as you do the lab.
B. try several methods until something works.
C. ask the instructor before proceeding.
D. skip it and go on to the next part.
C. ask the instructor before proceeding.
A variety of equipment can be attached to me, so your hands can be free
What is a ring stand?
A logical explanation of an observation that is drawn from prior knowledge or experience
What is an inference?
The prefix that represents 1,000
What is kilo-?
The factor that a scientist observes or measures during an experiment
What is the dependent variable?
When you finish working with chemicals, biological specimens, and other lab substances, always
A. use hand sanitizer.
B. wash your hands with soap and water.
C. wipe your hands on a towel.
D. wipe your hands on your clothes.
B. wash your hands with soap and water.
I am a flat-bottomed jar used often in chemistry. I have a lip to pour out my contents. Mix contents in me but don’t use me for precise measuring.
What is a beaker?
An explanation of observations or events based on knowledge gained from many observations and investigations
What is scientific theory?
The prefix that represents 1/1000 or 0.001
What is milli-?
A factor in an experiment that is changed by the investigator.
What is an independent variable?
After completing an experiment, all chemical wastes should be
A. left at your lab station for the next class.
B. disposed of according to your instructor’s directions.
C. dumped in the sink.
D. taken home.
B. disposed of according to your instructor’s directions.
I have a wide base and a narrow neck. I was named after the German chemist who created me in 1861.
What is an Erlenmeyer flask?