Observations VS Inferences
Observation or inference: The grass outside is wet.
What is Observation?
This type of graph is best used to show changes over a period of time.
What is a line graph?
The basic metric unit used to measure liquid volume.
What is a Liter?
The formula used to calculate the density of an object.
What is Mass/ Volume?
In an experiment, this is the one factor that the scientist intentionally changes or tests.
What is the independent variable?
Observation or Inference: It rained last night because the grass outside is wet.
What is inference?
This type of graph is best used to compare different distinct groups or categories.
What is a bar graph?
The basic metric unit used to measure mass or weight.
What is a gram?
Water has a density of exactly 1g/mL . An object with a density of 0.8g/mL will do this when placed in water.
What is float?
In an experiment, this is the factor that is measured or observed as a result of the change.
What is the dependent variable?
This type of observation involves numbers, measurements, or amounts (e.g., "The liquid turned 25°C").
What is quantitative?
When labeling the axes of a graph, the independent variable always goes on this axis.
What is the X-Axis?
There are this many millimeters in 1 centimeter.
What is 10 mm?
The most common unit of measurement for the density of a solid object.
What is centimeter cubed?
All the factors in an experiment that must be kept exactly the same to ensure a fair test.
What are constants or controlled variables?
This type of observation describes qualities using your senses, without numbers (e.g., "The liquid turned bright blue").
What is qualitative?
On a line graph showing plant growth over several weeks, the height of the plant goes on this axis.
What is the Y-Axis?
Convert 2.5 meters into centimeters.
What is 2,500 cm?
If an object has a mass of 30g and a volume of 10mL its density is this.
What is 3g/mL?
A student tests how different amounts of fertilizer affect tomato plant growth. In this experiment, the height of the tomato plant is this variable.
What is the dependent variable?
You see a dog shivering near an open door and conclude it is cold. The act of using your background knowledge and observations to draw this logical conclusion is called this.
What is making an inference?
This sentence/phrase is a popular memory trick used to remember where the independent and dependent variables belong on a graph.
What is DRY MIX?
Dependent Response Y-Axis
Manipulative Independent X-Axis
This popular mnemonic phrase helps science students remember the order of metric prefixes (Kilo-, Hecto-, Deka-, Base, Deci-, Centi-, Milli-).
What is King Henry Died Drinking Chocolate Milk?
To find the volume of an irregularly shaped solid object (like a rock), you submerge it in a graduated cylinder of water and measure the change in water level. This method is called this
What is water displacement?
In an experiment testing how music affects test scores, one group of students takes the test in complete silence. This group is known as this.
What is the control group?