The Scientific Method
Definitions
States of Matter
Physical/Chemical Changes
Mystery Powder Lab
100
In 5th grade we learned about 2 different methods. The ______________ method and the __________ method. Fill in the blanks
Scientific, engineering
100
Matter is anything that has ________ and takes up _______.
mass, space
100
List the 3 states of matter
solid, liquid, gas
100
What is 1 physical change you could make to a piece of paper?
rip it, tear it, crumple it...etc
100
What are 2 ways a forensic scientist is similar to us (regular scientists)?
Do experiments, use methods, investigate questions, look for evidence (make observations)....etc
200
What is the first step in both methods...according to Ms. O
Make observations!
200
What does the word forensic mean?
Before a forum
200
Use the words definite and indefinite. Solids have ___________ shape and _____________ volume.
definite, definite
200
What type of change happens in autumn when the leaves turn red/orange/brown
Chemical Change
200
What were the 3 solutions 'indicators' we used in our mystery powder lab?
Water, vinegar, universal/pH indicators.
300
In the scientific method I would have students ask/write a question. What is the engineering equivalent of this?
Define a problem.
300
The name of the law that says matter cannot be destroyed is _________________.
Law of Conservation of Matter
300
Use the words definite and indefinite. Gases have ________________ shape and ______________ volume
indefinite and indefinite
300
When I mix salt into a glass of water and it dissolves is that a physical or chemical change
Physical change (because I can evaporate the water back out)
300
What were our 4 mystery powders.
Baking powder, baking soda, cornstarch and powdered sugar
400
In the scientific method scientists formulate a hypothesis. In the engineering method they don't do this, instead they design a _______________.
Prototype.
400
The name of the measuring tool we use to find mass is a _______________.
Triple Beam Balance
400
Volume has ____________ shape and _______________ volume.
indefinite shape and definite volume
400
What are 3 things I should look for, when looking for physical changes?
change of shape, texture, size, state...etc
400
What 2 powders reacted with the vinegar?
Baking soda and baking powder.
500
At the end of both the scientific method and the engineering method it is important to ________________ the results with others.
Communicate
500
An ___________ is a chemical that changes color and structure when exposed to certain substances.
Indicator
500
What is the 4th state of matter?
Plasma
500
What are 3 things I should look for when looking for a chemical change?
Color change, odor change, cannot be reversed, bubbles.
500
What powdered was the only powder to turn blue? Did this indicate that it was more acidic, or basic?
Baking powder - basic.
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