True or False? Objects that are less dense than water tend to float. Objects that have greater destiny than water sink.
True!
100
Name one example of an indirect method of observation.
thermometer, scale, balance
100
This is the number of fruits and vegetables that we tested during the "float" or "sink" experiment.
8
100
This scientific term is the ratio of mass to volume.
Density!
100
True or False? This is an example of a good, detailed step in a scientific procedure:
"Hold the meter stick vertically with the zero end on the floor. The inches side of the measuring stick should be facing the ball before it is dropped."
True!
200
What is the seventh step (out of 7 total) of the scientific method?
Communicating results with other scientists.
200
In what way do scientists communicate their results with other scientists?
By publishing their work, by giving presentations, by talking with other scientists.
200
What is the third step (out of 7 total) in the scientific method?
Develop an hypothesis!
200
Why do scientists conduct research?
To find background information. To help them develop an hypothesis.
200
I put the Halloween candy in my mouth. It tasted sweet. What kind of observation is this? How do you know?
Direct observation because it uses one of the five senses.
300
Name one possible source of error in our golf ball drop experiment that we did this week.
Not dropping the balls from the same height every time.
Not dropping the balls at the same time the stopwatch was started.
Using both centimeters and inches in the data.
300
Name three different methods scientists use to present their data.
tables, bar graphs, line graphs, scatter plots
300
What is the importance of data analysis in the scientific method?
It's a way to summarize the data, to explain what all your observations mean, and to decide if the data you have makes sense.
300
If I play basketball with a team and all my shots hit the same spot of the rim, I am very accurate. True or False?
False. In this situation, I am "precise" but not "accurate."
300
What is the plural form of the word, "hypothesis."
hypotheses
400
If Mr. Cauley adds the same amount of salt to each of the containers in our "sink" or "float" experiment, what would the salt represent in the experimental design?
the independent variable, the dependent variable, a constant, or an hypothesis?
A constant.
400
In our "sink" or "float" experiment, these items represented the independent variable.
The fruits and vegetables!
400
In the Mythbusters video about how to stay dry in the rain, what is the independent variable?
Speed that the scientists travel on the course.
400
In the Mythbusters video about about whether you stay drier when you walk or run in the rain, what is the dependent variable?
The mass of rain that collects in the suits.
400
In science experiments, the __________________ have to be very detailed so that other scientists can repeat the experiment.
procedure
500
An entomologist, a scientist who studies bugs, wants to find out if temperature changes how many times a cricket chirps (the noise a cricket makes). What is the independent variable for this experiment?
Temperature!
500
In the Mythbusters video about how to stay dry in the rain, name three constants that the scientists control.
Amount of artificial rain that falls, walking pace, length of the course, rain suits
500
An entomologist, a scientist who studies insects, wants to find out if temperature changes how many times a cricket chirps (the noise a cricket makes). The number of cricket chirps represents what scientific term?
Dependent variable.
500
What is the density of water?
1 gram per mL (1 g/mL)
500
A botanist, a scientist that studies plants, wants to know if changes in air temperature affects the growth rate of plants. What would be the dependent variable for this scientific inquiry?