CER
Answer to a question in a complete sentence.
What is the Claim?
A student examines a mysterious liquid and records: “The liquid is colorless and has a strong odor.” Are these observations or inferences?
Observations
What is a cell?
The smallest unit of life.
In an experiment, what is the variable that the scientist changes on purpose?
Independent Variable
What is Ms. Yoo's 3rd child's name?
Milo the black lab
Can be either quantitative or qualitative.
What is evidence to support the claim?
A student sees bubbles forming in a liquid and writes: “A chemical reaction is occurring.” Observation or inference?
Inference
Baby macaque monkeys look like their parents.
What is heredity?
What do we call the factors/conditions that are kept the same throughout an experiment?
Constants
Examples of things you should not do in the lab. (Choose 4)
eating, drinking, running, smelling containers directly, having your hair down, not using PPE, etc.
Claim: Fertilizer increased plant growth.
Evidence: Plants receiving fertilizer were taller.
Reasoning: The fertilized plants were taller.
What is missing from the reasoning?
A scientific concept explaining why fertilizer can increase plant growth and connecting it to the evidence.
“The rock is rough, gray, and heavy.” What type of data is this?
Qualitative
Keeping in balance, like a person sweating when they are too hot.
What is Homeostasis?
A student wants to determine whether water temperature affects how quickly sugar dissolves. She uses 100 mL of water in each cup and the same amount of sugar. What is the independent variable?
Water temperature
What is Friday, October 2nd?
The date of your Quiz.
Complete sentence explanation about how you have connected the data to the claim. You need to include a scientific concept to support your scientific argument.
What is Reasoning?
22 out of 25 flowers died in the salt water mixture. (Be specific)
What is a quantitative observation.
Changes over time, like an egg becomes a tadpole and finally a frog.
What is growth and development?
In the same experiment, the student records how many seconds it takes for the sugar to completely dissolve. What is the dependent variable?
Time it takes the sugar to dissolve
What is the wall by the door?
This is where the fire extinguisher is.
When would you need to use a CER?
What is anytime you need to communicate information about data you have collected.
This type of observation uses describing words. (Be specific!)
What is a Qualitative observation?
The eight characteristics of life.
Cellular Organization, Reproduction, Heredity, Growth and Development, Metabolism, Respond to Stimuli, Homeostasis, and Evolution!
A scientist tests whether caffeine affects heart rate. One group receives a caffeine-containing drink, while another receives a caffeine-free drink. Why is the second group important?
It provides a control/baseline for comparison.
How long do you have to flush your eyes after chemical exposure?
At least 15 minutes.