Shared Flashcard Set

Details

chapter 1 test vocab
test tomorrow
24
Science
7th Grade
09/05/2012

Additional Science Flashcards

 


 

Cards

Term
Science
Definition
1) the process of gathering knowledge; 2) making observations and asking questions; 3) used in many careers
Term
three ways to search for answers
Definition
1) make observations; 2) do research; 3) expirement
Term
steps of the scientific method
Definition
observation, question, hypothesis, draw conclusion, analyze, communicate
Term
observations
Definition
using senses to gather info
Term
hypothesis
Definition
a possible explanation or answer
Term
prediction
Definition
if-then statements
Term
controlled experiment
Definition
a control group is compared with one or more experimental groups; has only 1 variable
Term
variable
Definition
the one factor that is changed or tested in an experiment
Term
limitations of models
Definition
does not act exactly like the object it represents
Term
scientific theory
Definition
explanation of repeated observations
Term
scientific law
Definition
summary of many experimental results and observations
Term
what the metric (SI) is based on
Definition
it is based on the number 10
Term
advantages of SI
Definition
easy to convert between units and helps scientists all over the world to share results (the language of science).
Term
how prefixes work in metric system
Definition
used with the SI (metric) units to make them larger or smaller
Term
SI unit of length
Definition
meter
Term
mass
Definition
amount of matter that makes up an object
Term
how do you find the volume of an irregular shaped object
Definition
put the object into a graduated cylinder with water. measure the water displacement. change the units from mL to cm3
Term
instruments to measure temp., liquid, volume, mass
Definition
-temp.-thermometer; liquid volume- graduated cylinder; mass - balance; volume- metric ruler or meter stick.
Term
formula for area:
Definition
area=length x width
Term
unit for density:
Definition
g/cm3 or g/mL
Term
which measurement (area, volume, mass, temp., or density) determines if something will sink or float in water?
Definition
density
Term
what is the area for a square box with sides of 7m?
Definition
49m2
Term
You have a graduated cylinder with water up to the 70mL mark. You add a rock to the cylinder and the water rises to 85mL. What is the volume of the shell?
Definition
15 cm3
Term
After a really hard rain, Mrs. Skinner found 3 earthworms with the following lengths: 5cm, 8cm, and 10 cm. What was the average length of the earthworms?
Definition
7.67cm
Supporting users have an ad free experience!