For a science project a student records how many vehicles drive past her house between the hours of 6:00 PM and 9:00 PM. On the first 5 days of study, she counted 9, 11, 4, 16, and 9 vehicles. What type of observation do these data represent?
Quantitative Observations
What would you measure using a graduated cylinder?
Volume
How many different crickets were tested in this experiment?
5
Which activity is least popular for the boys?
Crafts
Explaining things you observe based on background knowledge is called ____________.
Inferring
Which sentence best represents a hypothesis?
Ms. Kramer is smart, so she can eat plenty of steak.
If Ms. Kramer is smart, then she can read 3 books in a week.
Ms. Kramer is smart, so she can take the books and throw them away.
If Ms. Kramer is smart, then she can live without water.
2
What happens to the number of chirps as the temperature increases?
The number of chirps increase
How many people (total) participated in canoeing?
35
Guessing what will happen next based on your observations is call ____________.
Predicting
A scientist hypothesizes the height at which a flower is planted will determine how many petals the flower will have. The independent (manipulated) variable is ____________________
The height at which the flower is planted
What is the independent variable in the experiment?
The temperature
Which activity had the same number of male and female participants?
Swimming
Observations that deal with descriptions that cannot be expressed in numbers are called ____________.
Qualitative observations
A scientist hypothesizes the height at which a flower is planted will determine how many petals the flower will have. The dependent (responding) variable is ____________________
The number of petals the flower has.
What is the dependent variable in the experiment?
The number of chirps
How many more girls than boys participated in tennis?
5
What would you measure using a triple beam balance?
Mass
A scientist hypothesizes the height at which a flower is planted will determine how many petals the flower will have. The controlled (constant) variable is ____________________
Location
Type of flower
Time of year
What is one controlled/ constant variable in the experiment?
The time of day
The location
Unit in which temperature is measured
Type of cricket
How many girls participated in camp activities?
90