Scientific Process
Variables
Lab Safety
Characteristics of Life
Graphing
100
A hypothesis has to be phrased in what way?
An If, then statement.
Ex: If a plant receives nitrogen fertilizer, then it will grow taller.
100
We are testing plant growth based on the type of soil the plant is in. Is this qualitative or quantitative data?
Quantitative.
100
If we are doing a lab that involves a ton of chemicals and you get them all over your body and they start to burn what is the first thing you should do?
Go to the shower in the back of the room, stand under it, and pull the handle.
100
Do all living things:
-Respond to their environment
-Obtain and use energy
-Breathe oxygen
-Remain immortal
Yes
Yes
No
No
100
On a graph, what variable is represented on the x axis?
Independent Variable
200
What is the difference between a scientific law and a scientific theory?
A scientific law is set in stone and won't change - Newton's Three Laws.
A scientific theory has evidence to support it, but we can't say for sure that it happened - Big Bang Theory, Theory of Evolution
200
What is an independent variable?
What you are CHANGING.
200
What does appropriate lab safety clothing/gear look like if we were dissecting frogs?
Goggles, Closed-Toe Shoes, not too loose fitting clothing.
200
Does an organism needs to reproduce sexually or have more than one cell to be considered living?
No, they can be asexual and unicellular.
200
Describe the pattern of the data.
It increases, then levels off.
300
We are observing a tree in the courtyard and notice that the tree has several different types of leaves. How could we record the differences in the leaves?
Photograph each type of leave.
Individual measurement and written description could work but it wouldn't be fully accurate.
300
Time/Date/Month should always go on what axis?
X Axis
300
What is a probe and a hand lens used for?
Probe - To help identify, point out, or move around a specimen.
Hand Lens - To magnify something (especially if a microscope is not available).
300
A human shivering due to being cold is an example of what characteristics of life?
Response to stimuli
300
Which spectrum of light do plants not grow well in?
Green
400
What is the difference between an observation and an inference?
An observation is something that you use your 5 senses to actually see/feel/smell/hear.
An inference is an assumption (ex: a person must be hot because their face is red).
400
What axis does the dependent variable go on?
Y axis
400
During an experiment, several glass beakers break. What is the first thing you should do?
Inform the teacher
400
A tomato plant that started as a seed and then turns into a 2 feet tall tomato plant is demonstrating what characteristics of life?
Growth of Development
400
If you have multiple sets of data across a time period (Comparing 2 cities and the amount of rain they experience each month), what type of graph would you use?
Line graph
500
Can you have more than one constant? Can you have more than one control?
Yes and No
500
What is the difference between a control and a constant?
A control is your base line (ex: a plant watered with hose water).
A constant is something that stays the same for each trial (ex: same pot, same plant, same amount of sunlight).
500
When a human has a fever, their body is usually fighting off some type of infection. What is this an example of?
Maintaining homeostasis.
500
What are 3 things every graph should have?
1. Title
2. Axis Labels
3. Key
4. Appropriate Scale