Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
47 Cards in this Set
- Front
- Back
|
Measures volume of liquids and can be heated
|
beaker
|
|
|
measures volume of liquids but cannot be heated
|
Graduated Cylinder
|
|
|
Allows for swirling and mixing and may be heated
|
"Earl" Erlenmeyer Flasks
|
|
|
Allows for swirling and mixing and can be heated.
can be corked for storage and it has curves. |
"Flo" Florence Flasks
|
|
|
transports liquids in small amounts
|
pipette or dropper
|
|
|
holds liquids safely for testing and can be heated
|
Test tube
|
|
|
It holds test tubes.
|
Test tube racks
|
|
|
transfers small, tiny substances.
Picks up things that cannot be touched with bare hands. (2) |
tweezers/ tongs
|
|
|
Preparing a slide: (4 steps)
|
1. Place the specimen on slide
2. Put drop of water on specimen if not already wet 3. Drop cover slip on top of the water at a 45degree angle to avoid air bubbles 4. If needed, apply stain on the edge of the slip |
|
|
What is needed on a graph:(6 things)
|
1. Detailed title which inlcludes IV & DV
2. Key to explain mutiple lines, bars, or pie pieces 3. Label axis with variable and units 4. Determine scale for each variable starting with 0. 5. Label consistently 6. Try to keep the graph SQUARE |
|
|
Use a line graph when?
|
usually to show change over time
|
|
|
Use a bar graph when?
|
to compare values
|
|
|
Use a pie graph when?
|
to show parts of a whole
|
|
|
Use a scatter plot when?
|
To show trends
|
|
|
What are the 8 Characateristics of life?
|
1. Cells (Cellular)
2. Grow and Develop 3. Metabolism 4. DNA 5. Reproduce 6. Respond to Stimuli 7. Maintain Homeostasis 8. Adapts through evolution |
|
|
All Living Things are composed of 1 or more of these; they are the basic unit of life
|
Cells
|
|
|
What is the Cellular Organization from the simplest to most complex? (8)
|
1. Atoms
2. Molecules 3. Organelles 4. Cells 5. Tissues 6. Organs 7. Systems 8. Organism |
|
|
_________occurs with an orderly replacement and formation of cells and _______ refers to natural progressive changes throughout life span.
|
Grow & Develop
|
|
|
An example of growth and development is the adding of more cells and/or replacing cells which is called?
|
Mitosis
|
|
|
the sum of all chemical reactions; the process of energy use and generation; living things need more energy to grow, develop, repair damage, and reproduce
|
Metabolism
|
|
|
The ability to do work
|
Energy
|
|
|
they make their own food
|
Autotrophs
|
|
|
cannot make their own food
|
Heterotrophs
|
|
|
All living things receive their basic genetic info. from this..
|
DNA (Deoxyribo Nucleic Acid)
|
|
|
the production of offspring; essential for species to continue to exist
|
Reproduce
|
|
|
1 parent genetically produces usually with identical offspring (Like Mitosis)
|
Asexual
|
|
|
the joining of gametes (sperm and egg) which produces genetically different offspring
|
Sexual
|
|
|
Stimuli are environmental elements Ex..(5)
|
respond to stimuli; temp.,water, sound, light, danger, etc.
|
|
|
A stable state of conditions needed for life Ex..(4)
|
Maintain Homeostasis; temp. (98.6 degrees), salinity(salt), hydration (water), acidity (PH)
|
|
|
Adaptations are inherited changes that occur over time that have increased a species's ability to survive
|
Adapts through evolution
|
|
|
How many steps are in the Scientific Method?
|
9 Steps
|
|
|
List the 9 steps of the Scientific Method.
|
1. Identify a problem or questio
2. Do some research 3. Form a hypothesis 4. Identify Variables 5. Design and implement procedure 6. Collect Data 7. Analyze Data 8. Conclusion/Evaluation 9. More trials |
|
|
Identifying a problem or question
Inferences: Drawing Conclusions based only on previous knowledge Ex: The grass is wet because...it rained. |
Step 1 on the Scientific Method
|
|
|
Do some research
Use good resources like Scientific Journals |
Step 2 on the Scientific Method
|
|
|
Form a hypothesis
A testable, educated guess usually written as "If...then...because..." |
Step 3 on the Scientific Method
|
|
|
Identify Variables
IV:Intentionally manipulated by the experimenter which is graphed on the x-axis DV: responds to the IV which is measured or observed graphed on the y-axis The effects of IV on DV!! Constants are:________ Control are: ___________ |
Step 4 on the Scientific Method; conditions that dont change; group use for comparision that does not receive the variable
|
|
|
Design and implement procedure
|
Step 5 on the Scientific Method
|
|
|
Collect Data
Usually in tables quantitative: numerical ex..the road is 15KM. qualitative: descriptive ex...the road is long and narrow |
Step 6 on the Scientific Method
|
|
|
Quantitative
|
numerical
|
|
|
Qualitative
|
description
|
|
|
Analyze Data
Otherwise data is RAW Graphs Look for trends in data Mathematical analysis Range Mode Mean Median |
Step 7 on the Scientific Method
|
|
|
Conclusion/Evaluation
Compare your actual results to expected results Evaluate the process Identify hidden variables and improvements for next time (There is ALWAYS a hidden variable) |
Step 8 on the Scientific Method
|
|
|
More trials = accuracy
Theory: An explanation of a natural phenomenon supported by many observations and experiments over time. |
Step 9 on the Scientific Method
|
|
|
Drawing conclusions based on previous knowledge
|
inferences
|
|
|
Life can spontaneously form from non-living matter.(2 names)
|
Abiogenesis; Spontaneous Generation
|
|
|
Something causing or regarded as causing a response
|
Stimulus
|
|
|
The principle that living organisms develop only from other living organisms and not from nonliving matter
|
Biogenesis
|
