Observation or Inference
Outside it's raining, the sun is behind clouds and the wind is blowing trees.
Observation
In Mining for Cereal (Ramirez) what was the independent variable, types of cereal or amount of iron.
What does a ruler measure?
I want to see how the amount of precipitation changed over the months of the year.
Line Graph
Constant
I smell burning, a hint of popcorn and smoke coming from the kitchen, someone probably burned popcorn.
Inference
In the floating egg (Haberkost) what was the independent variable, amount of salt or the amount the egg floated.
Amount the egg floated.
I want to know what the outside temperature is, what should I use?
Thermometer
Bar Graph
When we write as statement like IF I DO THIS, THEN THIS WILL HAPPEN, I'm writing a _________________.
Hypothesis
Which is an inference about an elephant?
They are grey.
Due to their size, they probably eat a lot.
Due to their size, they probably eat a lot.
In Blowing Up a Balloon (Sirag) what independent variable could you change if you repeated the experiment?
Varied Answers
What instruments can be used to measure weight and mass?
Balance scale and scale
Name 3 things all graphs need.
Title, labels, data, scale, key(picto)
What is the procedure?
The steps in an experiment.
Which is an observation?
It will probably snow.
We received 17 inches of snow.
We'l have a snow day.
We received 17 inches of snow.
In Water Droplets on the Penny (Little) what was the dependent variable?
Amount of drops on the penny.
What is volume and what instrument(s) could be used to measure volume?
Measures liquid and graduated cylinder or beaker.
A graph that measures something over time.
Line graph
What is an independent variable?
The part of the experiment the experimenter changes.
What is the difference between an observation and an inference?
An observation can be measured and an inference is a prediction/hypothesis of what may happen.
In Water vs. 7-Up what was the independent variable, the liquids or the marshmallows, beans, lentil and raisins?
Marshmallows, beans, lentil and raisins
If we wanted to magnify items that were too small see with our eyes, what would we use?
Microscope
On a line graph, how can I tell when the largest increase or decrease occurs?
Look at the steepness of the line segment. The steeper the larger the increase or decrease.
What changed because the experimenter did something differently.