Scientific Method
The first step of the scientific method
4035 cm to km
.04035 km
Convert to standard form:
8.91 x 10^4
89100
When something cannot be broken down into simpler substances
Element
Change in color belongs to what type of change
Physical Change
After I have a question or problem, I then form a _______?
Hypothesis
756 hL to L
75600L
Convert to standard form:
8.91 x 10^-4
.000891
Type of mixture where the parts are noticeably different from one another
Example: cereal
Heterogeneous
Chemical Change
Define Hypothesis
Educated guess/prediction
8354 dg to kg
.8354 kg
Convert to scientific notation:
254 000 000 000
2.54 x 10^11
A substance that is made from 2 or more simpler substances
Compound
This physical property allows heat and electricity to flow
Conductivity
What two types of variables are looked at during the experiment phase?
Independent and Dependent
Manipulated and Responding Variable
.0087 hm to m
.87m
Convert to scientific notation:
.005643 x 10^4
5.643
Which if the following has the largest particles?
Solutions, Suspensions and Colloids
Suspension
This physical property is the specific temperature where an substance freezes
Freezing Point
Why is the step labeled "share" considered the most important part?
Without sharing the data we cannot use it to learn for better or worse
.000231 kg to mg
231 mg
convert 54321 dm to mm
5432100 dm
Where can we find a complete list of elements?
Periodic Table
What is the main difference between a chemical and physical change
Physical changes - change appearance
Chemical Change - change composition