Steps of the Scientific Method
Step 1 of The Scientific Method
What is choosing an investigable question?
Three common states of matter
What is a solid, a liquid, and a gas
The one variable you change
What is the independent variable?
The temperature of Dry Ice
What is 109-110 degrees Fahrenheit?
This step of The Scientific Method is recording what your results taught you.
What is the conclusion?
The step that comes before writing your conclusion.
What is recording your results?
Double Jeopardy
When a substance changes from a solid to gas.
What is sublimation
The variable you observe or measure.
What is the Dependent Variable?
Dry Ice is the solid form of this.
What is carbon dioxide?
These aren't good investigable questions.
What are "How" and "Why" questions?
A follow-up question
What it's called when you take your results from an investigation and do another investigation to learn more?
You make a plan, decide on the conditions, follow the plan, and then carefully observe what happens over time.
What is a systematic observation?
The variables that are kept the same.
What are the controlled variables?
Explain the Mystery of the floating bubbles
What is... the bubbles were floating on top of the invisible carbon dioxide gas which was from the sublimation of the dry ice that was sitting at the bottom of the aquarium.
Daily Double
Tiny, moving particles that matter is made up of.
What are atoms?
An educated guess as to what your results will be.
What is an hypothesis?
When a substance changes from a liquid to a gas.
What is evaporation?
A type of test that changes one factor at a time to cause an effect to take place, while keeping all other conditions the same.
What is a fair test?
For safety, other than touching dry ice with bare hands, this is one more thing we do not do with dry ice.
What is put it in a closed container?
Why you hear a noise when you press dry ice against metal
What are vibrations caused by carbon dioxide gas escaping through the small space between the dry ice and metal?
3 types of good investigable questions
What are "measuring", "What-happens-if", and "Comparison" questions?
This happens when you take energy away from a liquid.
What is "becomes a solid"?
I have conducted an investigation where I am comparing 2 types of soils and how they affect the growth of my tomato plants. I will be placing 2 identical tomato plants at the same time in 2 different types of soils for 6 months and will measure the growth of each at that time. My two soils are identified as what variable and my measured growth would be what variable?
What is the independent variable? What is the dependent variable?
What happens to the molecules when dry ice goes from a solid to a gas.
What is...they are the same size and shape, but they move faster and farther apart?
These 2 things affect how fast dry ice sublimates
What is surface area and heating rate?