Exam Flashcards
List the 3 p’s and how to use a fire extinguisher
1.pull
2.point
3.press
Fire extinguisher- Pull the pin
Point the fire extinguisher at the base of the fire
Press the discharge lever/ handle and sweep side to side
When you are finishes with a lab, who determines the clean up procedures?
Your teacher
List the steps of the scientific method #1
Problem- should be asked in the form of a question
Define dependent variable and independent variable
Variable-is able to changed or adapted
Independent variable-a variable that can not be changed or adapted
What is the hypothesis?
An educated prediction of how the independent variable effects the Dependent variable
When first finding an object with a microscope
a. Which objective do u use
b. Which adjustment knob do u use
a. Lower power
b. Coarse adjustment
What is the difference between a prokaryotic and a eukaryotic cell?
Pro-a microscope single called organism that has neither a distinct nucleus with a membrane nor other specialized organelles.
Eukaryotic-an organism consisting a cell or cells in which the genetic material is Dna in the form of chromosomes contained with a nucleus
Cytoplasm
The material of protoplasm within a living cell, excluding the nucleus
Cell membrane
The semipermeable membrane surrounding the cytoplasm of a cell.
Ribosome
A minute particle consisting of RNA and associated proteins, found in large number in the cytoplasm of living cells
Endoplasmic reticulum
Network of membranous tubules within the cytoplasm of a eukaryotic cell continues with the nuclear membrane
How do u dispose of all chemicals?
Ask the teacher how to do it
Scientific method#2
Research- find out as much about the topic as possible
Scientific method#3
Hypothesis-written in an if/then format
Scientific method#4
Experiment-should have one independent variable, multiple samples, and data collected
