Qualitative or Quantitative Observations
The flower cluster is in threes.
Quantitative
The leaves on the plant are turning yellow.
Observation
Examining how different types of music affect concentration levels while studying.
What is the independent variable?
Different types of music
What is a constant?
Something that stays the same
What unit do we use when measuring mass?
Grams
The cake in the oven smells so good.
Qualitative
The plant may be lacking essential nutrients, such as nitrogen, or it might be receiving too much water.
Inference
What is the dependent variable?
The weight gain in mice
What is an independent variable?
Something that is being changed
What unit do we use when measuring temperature?
Celcius
Using 5 senses (describing something)
The bread has mold growing on it.
Observation
What is the independent variable?
Concentration of salt
What does it mean to waft?
Move gently through the air (not inhaling)
When do we use a triple beam balance?
To measure mass
One leaf is 7 cm long.
Quantitative
*Observation* The milk in the refrigerator smells sour
What would be the inference
The milk has gone bad
Investigating how different temperatures affect the solubility of sugar in water.
What is the independent variable?
Temperature
What is a dependent variable?
Something that is being measured
what are we measuring when we use a graduated cylinder?
Volume
What is a Quantitative observation?
Something that is measurable (numbers)
*Observation* The sky is filled with dark clouds.
What would the inference be?
Analyzing how different light colors affect the rate of photosynthesis in aquatic plants.
What is the IV?
Color of light
What should be done before starting a lab?
Read all procedures
Make sure your area is neat
Triple beam balance
Grams