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Practice of Science
Planning an Investigation
Tools and Measurements
Organizing and Analyzing Data
100
Use this to test a hypothesis.
What is an experiment?
100
Information gathered through the senses prior to asking a question.
What is an observation?
100
A tool used to grow bacteria.
What is a petri dish?
100
Data that is described through words
What is qualitative data?
200
A possible answer to a scientific question
What is a hypothesis?
200
A factor that can affect the outcome of an experiment.
What is a variable?
200
Use this to find the mass of an object.
What is a triple beam balance?
200
A graph used to describe the parts of a whole.
What is a circle graph?
300
Series of steps used to guide scientific investigations.
What is scientific method?
300
The variable that the experimenter deliberately changes.
What is an independent variable?
300
The ocular lens has a magnification of 5x. The objective lens has a magnification of 30X. What is the total magnification?
150X
300
Scientists use ____________, ________________, and _______________ to represent data.
charts, tables, graphs
400
What scientists use to communicate the information of the their experiments to each other.
What is a laboratory report?
400
Each repetition of an experiment
What is a trial?
400
Give three differences between a light microscope and a electron microscope.
Light microscope: 1000-2000x magnification, living or dead specimens, uses light, view through lens Electron microscope: 1 million to 2 million magnification, dead specimens only, uses electrons, view on screen
400
You put your baby brother to bed. You then hear a thud in the room and hear crying. You assume your baby brother fell out of bed and is crying. Scientists would call this assumption a....
Inference
500
When an article is reviewed by other experts in the field
What is peer review?
500
If an experiments data does not support the hypothesis the scientist can __________________ or ________________
make a new hypothesis;do more experiments
500
DAILY DOUBLE You have a box with a volume of 500 cm^3. You fill a graduated cylinder with 90 mL and add 6 blocks of wood. The water rises to 120 mL. How many blocks maximum can theoretically fit in the box!
100 blocks
500
If the oven increases 2.5 degrees for every 7 minutes it is on, how long will it take for the oven to reach 17.5 degrees if it starts from 0 degrees?
49 minutes