Classify the statement as a qualitative observation, a quantitative observation, an inference, or a prediction.
"Ms. Landon has brown hair."
Qualitative observation
The temperature in a bedroom determines how many times a person rolls over in their sleep.
What is the independent variable?
The temperature in the bedroom
What is the mass of sample 4?
160 g
How many boys participated in canoeing?
20
What is the water level of the graduated cylinder?
48 mL
Which of the following is a quantitative observation?
A) The refrigerator is white
B) The refrigerator is a cube
C) the refrigerator is 6 feet tall
D) the refrigerator has magnets on it
C
The amount of water somebody drinks determines how many times they use the bathroom in a day.
What is the dependent variable?
The number of times someone uses the bathroom.
What was the average potato yield when fertilizer A was used?
33.3
What was the indoor temperature at 2:00 PM?
75 degrees
What is the temperature on the thermometer?
76 degrees
Is the following statement an inference or a prediction?
"Lake Hamilton is going to win the football game."
Prediction
The length of a dog's daily walk affects the hyperactivity of the dog.
Which of the following are NOT a control variable?
A) The type of dog
B) The location of the walk
C) the length of the walk
D) The person walking the dog
E) The hyperactivity of the dog
C, E
What sport do the most males play? The most females?
males- wrestling
females- swim
Which store had the most sales?
F
What is the mass on this balance beam?
266 g
"This person got a phone call that his dog got out of the backyard." What kind of statement is this?
Inference
The amount of cardiovascular exercise a person gets determines how long they can hold their breath.
Identify the independent variable, the dependent variable, and one control variable.
Independent- amount of cardiovascular exercise
Dependent- How long they can hold their breath
Control- type of exercise, person timing the breath holding, the timer used
Which substance(s) do not conduct electricity as a solid or when it's dissolved in water?
Glucose, fructose
What is the percentage of oil?
31%
How long is the pink line?
6.5 CM
Make 1 qualitative observation, 1 quantitative observation, 1 inference, and 1 prediction about the photo. You must get them all correct to get the points for your team!
Teacher approves the answer!
On which axis is the independent variable? On which axis is the dependent variable?
Independent- X, dependent-Y
What is the independent variable? The dependent variable?
Independent- pH of soil
Dependent- plant growth
Tree growth over a span of 10 years is recorded by a scientist. To make the data easier to read, the scientist wants to make a graph. What kind of graph is the best choice for this data?
Line graph because the data shows something changing over time.
What is the volume of the rock?
5 CC, 5 mL