Scientific Method
Washing Up
Fingerprints and flower traits
Chromo Labs
Penny Problems
100
This is the very first step in the scientific method
observation
100
True or false:
Water and oil mix together easily
false
100
True or false:
Babies develop fingerprints after they are born
false: they develop fingerprints when they have been developing for 10 weeks
100
True or false:
The black ink in washable markers is made of only 1 color (black)
False! It has many different colors!
100
Both pennies and the Statue of Liberty are made of...
copper
200
This is the second step in the scientific method
question
200
An example of a microorganism is...
germs!
200
True or false:
Preferring dogs over cats is an external trait (you develop that preference independent of your genes)
True
200
A food that has a lot of carotenoids in it would be what color?
orange
200
Water molecules have a positive end and a negative end. This means that water is __________.
polar
300
this step of the scientific method involves making an educated guess about what will happen in the form of a "if... then... because" statement
hypothesis
300
True or false:
Washing hands before handling food helps prevent the spread of germs
True
300
Name 2 different fingerprint patterns
Loop, double loop, plain arch, central pocket loop, plain whorl, tented arch
300
What was the liquid we used in both chromatography labs?
rubbing alcohol
300
Cohesion means that water is attracted to...
other water molecules
400
this step of the scientific method involves running tests to gather data
experiment
400
molecules that have a positive charge on one end and a negative charge on the other end are know as...
polar molecules
400
Beans require at least 2 things to sprout and grow strong. What are those 2 things?
Water and sunshine
400
What 2 colors did we see during the spinach chromatography lab?
green and yellow
400
Adhesion means that water is attracted to...
other surfaces
500
After running experiments and gathering data, the last step of the scientific method is
reporting results
500
Because soap allows polar and non-polar substances to mix, what type of substance is soap?
An emulsifier
500
Characteristics like hair color and eye color are passed down from your parents. That means that they are _________ traits.
Inherited
500
Why do some colors not travel as far as others?
Some parts like the filter paper more than the rubbing alcohol
500
The coating that forms on copper due to oxidation is called
a patina