Measuring
Observation / Inferences
Variables
Graphs and Data
100
The metric system.
What do we use to measure in science?
100
Something you can tell using your senses.
Observations
100
The variable that is changed by the scientist.
What is an independent variable?
100
A graph that shows data points connected by lines; good for showing trends over time.
What is a line graph?
200
1000 in the metric system
What is Kilo?
200
A conclusion based on observations.
What is an inference?
200
The variable that is measured in response to changes in the independent variable.
What is a dependent variable?
200
A graph that compares different groups or categories using bars.
What is a bar graph
300
There are 100 centimeters in a
Meter
300
An observation based on qualities, not numbers.
What is a qualitative observation?
300
The things kept the same in an experiment.
What are controls? (or controlled variable)
300
What are the two highest uses among teenagers before bed?
Snapchat and Youtube
400
The unit for measuring mass in science
What are grams?
400
Inference from this scenario: The sky is filled with dark clouds, and the temperature has dropped.
It might rain soon
400
An experiment to see how different types of fertilizer affect the yield of tomatoes.
- Independent Variable: Type of fertilizer used (e.g., organic, chemical, no fertilizer).
- Dependent Variable: Number of tomatoes produced per plant after harvest.
400
The information collected during the experiment.
What does data refer to in an experiment?
500
Longer Distance: 2 kilometers or 1000 meters?
2 kilometers
500
Quantitative Observation: The classroom is noticeably warmer than usual, and the temperature reads 29°C on the thermostat.
The temperature is 29°C
500
To investigate how temperature affects the solubility (dissolving over time) of sugar in water.
- Independent Variable: Temperature of the water (e.g., cold, room temperature, hot).
- Dependent Variable: Amount of sugar dissolved in grams after a set time.
500
This graph is showing 
What is Sleep Duration and Screen Time over time