Tools and Measurement
Carrie wants to measure how wide her classroom is. What tool should she use to do this?
A. meter stick
B. balance
C. thermometer
D. beaker
What is an observation?
A story
Something that you already know
Something you experience with your senses
Using your imagination
An input is something that...
A. Something that disrupts a system
B. Something that enters a system
C. Something that exits a system
D. Not important to systems
What is a model?
Represenation of something imaginary
Represenation of animals
Represenation of a real object or event
Represenation of aliens
Leo is planning on doing an experiment to see how fast objects fall to Earth. What should Leo do during his experiment?
A. keep accurate records
B. eat a snack
C. do homework
D. listen to the radio
What type of information does a thermometer show?
A. temperature
B. volume
C. weight
D. distance
What is a hypothesis?
A question
A fact
An answer to a question that makes sense and can be tested
An answer to a question that can’t be tested
Which example is a system?
Nutrient
Rock
Car
Box
Models show which of the following?
Things that are very big
Things that are very small
Things that are very dangerous
All of the above
Which of the following senses can be used to make observations in a scientific investigation?
A. sound
B. sight
C. smell
D. all of these
Which of the following pieces of equipment would Carlos most likely need in order to investigate how fast an anole lizard is?
A. a microscope
B. a stopwatch
C. a balance
D. a graduated cylinder
What is a variable in an experiment?
Something that stays the same
Something that is cool
Something that may change
The name of the experiment
What is a system?
A group of interacting parts that need each other
True or False:
Models can be made out of clay, paper, soil, rocks, or other materials.
Which of the following things should you do during every scientific investigation?
A. change your observations to make your prediction seem correct
B. rush to be the first one finished
C. record your observations
D. wear earmuffs
Which of the following tools is used to measure weight?
A. a microscope
B. a spring scale
C. a meter stick
D. a graduated cylinder
What is data?
The question you are asking in an experiment
The part of the experiment that changes
The part of the experiment that stays the same
Any observations you make or measurements you take in an experiment
Which of the following best describes a cell phone?
Human made system
Natural system
Not a system at all
Which statement correctly describes models?
Models are always the same size as what they represent
Models are always the same material as what they represent
Models look exactly like what they represent
Models make it easier to study an object or event
Brian completed his experiment for science class and is now writing his report. Some of his observations are listed below.
What do these observations have in common?
What do these observations have in common?
Which of the following tools is used to make far-away objects easier to see?
What is a conclusion?
An opinion about your experiment
A final decision made about your experiment using the data
The charts and graphs in an experiment
The beginning of an experiment
System in Nature
Give an example of a system found in nature.
Why Use Models?
Name one reason a scientist would use a computer to make a model.
What is the best way to ensure an experiment has been run well and can be repeated?
A. decide your conclusions before running the test
B. only write down observations that support your prediction
C. keep a good, detailed record of the test
D. change observations after the test is done