Lab Safety
True/False: You can eat in lab.
False
What is the first step of the Scientific Method?
Make an observation/Ask a question
In the graph on the board, which month had the most deer sightings?
October
What is the basic building block of life?
A Cell
What organelle makes energy through respiration/from outside materials?
Mitochondria
How should you smell something in lab if the teacher instructs you to do so?
Wafting
What should you do after you analyze data?
Make a conclusion
Describe what an inference is.
Something you assume based off an observation
Generally, what shape are plant cells?
Square/Rectangular
What organelle does an animal cell have that a plant cell does not?
Lysosome
How should you handle glassware?
With two hands at all times
What is a hypothesis?
An educated guess
What is the group called that is receiving the factor that is being tested in the experiment?
experimental group
What kind of organism is a bacterium?
unicellular
What is the difference between a plant and animal cell vacuole?
Plant cells have large vacuoles that hold more water and give the cell structure.
Animal cells have many small ones.
How long should you wash your eyes in an eyewash station after exposure to chemicals?
15 minutes
I want to see if spraying lemon juice on my apple slices will make my apple slices stay fresh for longer. How could I test this (give me a procedure)?
(Answers vary)
Why is a sample size of 500 better than a sample size of 200?
Because a larger sample size gives you a "bigger picture"
What is a more scientific way to describe any living thing, such as a dog, cat, human, plant, etc.?
organism
What is the difference between a cell wall and a cell membrane?
Cell Wall: gives structure and support to PLANT cells
Cell Membrane: lets materials in and out selectively, is in both kinds of cells
Describe what a student ready for lab should look like (at least 3 descriptors)
Hair tied back, jewelry off, hoodie strings tucked away, items at the back of the room, wearing googles, etc
Describe how you would test the efficiency of different paper towels through the Scientific Method.
(Answers will vary)
What is the dependent variable of this scenario, and why:
I noticed that when I use different types of fishing bait, I catch different amounts of fish. I perform an experiment where I count how many fish I get with different kinds of bait, to see which is the most effective.
How many fish are caught
N/A
N/A
Why do plant cells need chloroplasts?
Because they can't consume food, so they need to make their own from sunlight