Experiments
Which piece of equipment do scientists use to measure the temperature of an object?
A. balance
B. graduated cylinder
C. metric ruler
D. thermometer
D. thermometer
Which of the following do you use when you make scientific observations?
A. your senses
B. your opinions
C. others' beliefs
D. others' comments
A. your senses
Which description is the definition of a hypothesis?
A. an account of an observed event
B. a statement that predicts a future event
C. a testable idea that leads to scientific explanations
D. a well-supported and widely accepted explanation of nature
C. a testable idea that leads to scientific explanation
BONUS - 200 points
What scientific tool would best be used to compare the masses of two rocks?
A. metric tape measure
B. metric ruler
C. electronic balance
D. electron microscope
C. electronic balance
Which is the term for observations and measurements used to support scientific explanations?
A. Science
B. Empirical evidence
C. Experimental investigation
D. Logic
B. Empirical evidence
A science class is studying seeds what should they use to record the measurements?
A. graph
B. data table
C. drawing
D. camera
B. data table
BONUS - 400 points
Why was the International System of Units (SI) developed?
A. to compete with the English Standard of Units
B. to allow countries to follow their own system of measurement
C. to keep data, observations, and measurements a secret
D. to help scientists compare measurements made by others
D. to help scientists compare measurements made by others
What is the empirical evidence?
A. collected through observations
B. collected during experiments
C. is based on the bias and opinions of scientists
D. is important for the engineering process
A. collected through observations
A student ran the same experiment 3x. Which characteristic of a good investigation did he do?
A. large sample size
B. controlled variables C. multiple trials
D. peer review
C. multiple trials
Which of the following is not a correct match?
A. length-metric ruler or tape measure
B. time-graduated cylinder
C. temperature-thermometer D. mass-triple beam balance
B. time-graduated cylinder
Scientists use computer models to study how black holes form in space. Why are models used?
A. Black holes do not actually exist
B. Black holes are too small to study
C. Black holes are too dark to study
D. Black holes are too far from Earth
D. Black holes are too far from Earth
What does SI stand for?
A. Scientific Investigation
B. International System of Units
C. feet, inches, pounds
D. United State of America
B. International System of Units
Which description is the definition of a variable in a scientific experiment?
A. a set of possible outcomes for an experiment
B. any factor that can change in a controlled experiment
C. a question being explored by an investigation
D. a range of values for a particular quantity in an experiment
B. any factor that can change in a controlled experiment
Black paper will get warmer in sunlight than white paper. What is a scientific reaction?
A. Accept it as true.
B. Design an experiment to test it.
C. Believe it since it was written in a book
D. It is false and doesn't make sense
B. Design an experiment to test it.
BONUS - 600 points
A student wants to get a precise measurement of the volume of liquid. What tool should they use?
A. beaker
B. test tube C. petri dish
D. graduated cylinder
D. graduated cylinder
BONUS - 800 points
Which Statement is a hypothesis?
A. Sample A has a greater mass than Sample B
B. There are more than 100 elements in the periodic table
C. We have found that bean seeds sprout faster than corn
D. I think seeds given 10 mL of water sprout faster than 5 mL
D. I think seeds given 10 mL of water sprout faster than 5 mL
Why was the International System of Units (SI) developed?
A. compete with the English Standard System of Units
B. to allow countries to follow their own system of measurement
C. help scientists keep their data a secret from others
D. help scientists compare data worldwide
D. help scientists compare data worldwide
Which sequence of events is a logical order of a scientific investigation?
A. experiment-hypothesis-analysis-conclusion
B. hypothesis-experiment-conclusion-analysis of data
C. analysis of data-conclusion-experiment-hypothesis
D. hypothesis-experiment-analysis of data-conclusion
D. hypothesis-experiment-analysis of data-conclusion
Which of the following questions about oceans is a testable, scientific question?
A. How much salt is in a gallon of ocean water?
B. Is swimming in the ocean more fun than in a pool?
C. What is the best ocean for sightseeing?
D. Are ocean fish tastier than freshwater fish?
A. How much salt is in a gallon of ocean water?
Which of the following could be answered using a scientific investigation?
C. Why does a helium balloon float into the sky when released?
What is the difference between an independent variable and a dependent variable? A. dependent variable does not change but independent does
B. neither changes
C. dependent variable is the control that causes the results
D. Dependent variable changes based on the independent variable
D. Dependent variable changes based on the independent variable
How many milliliters are in 5 liters?
A. 50
B. 500
C. 5,000
D. 50,000
C. 5,000
BONUS - 1000 points
A student times how long it takes a sheet of paper and a crumpled piece to the ground from 5m?
A. The independent variable - shape of the paper
B. The independent variable - height of the drop
C. The independent variable - length of time for it to fall
D. The independent variable - speed at which the paper fell
A. The independent variable - shape of the paper
The hurricane followed a similar path of the model but not exactly. How is this a limitation?
A. Models cannot be used to predict things
B. Models can be used to predict weather before it happens
C. Models can't account for how every factor may suddenly change
D. Models can only be used to show physical structures
C. Models can't account for how every factor may suddenly change
Which of these activities could be part of a scientific investigation?
A. discussing current events
B. reading parts of a play aloud
C. learning the rules of a new game
D. recording the outdoor temperature
D. recording the outdoor temperature