Changing Phases
Sink or Float?
Endo or Exo
Name that Phase
Famous Scientists
100

What is the freezing point of water?

What is 32°F or 0°C?

100

What is the definition of volume?

What is the amount of space matter occupies?

100

What is one type of endothermic reaction?

What is melting, vaporization, or sublimation?

100

My molecules are tightly packed together. What am I?

What is a solid?

100

Who discovered the theory of relativity?

Who was Albert Einstein?

200

What is the boiling point of water?

What is 212°F?

200

What is the density of iron?

Volume: 15 cm3

Mass: 118.11 g

What is 7.874 g/cm3?

200

What is one type of exothermic reaction?

What is matter condensing or freezing?

200

I take the shape of my container, but have a definite volume. What am I?

What is a liquid?

200

I lived in the Renaissance, and I am credited with discovering that Earth orbits around the Sun, not the other way around. Who am I? 

Who was Galileo Galilei?

300

When matter vaporizes, is it gaining or losing energy?

What is gaining energy?

300

What is the mass of nylon? (Rounded to the nearest hundredth)

Density: 1.14 g/cm3

Volume: 12.167 cm3

What is 13.87g?

300

Is condensation an endothermic or exothermic reaction?

What is exothermic?

300

My molecules move very fast, and I have no definite shape or volume. What am I?

What is a gas?

300

Who discovered the Fahrenheit temperature measurement system?

Who was Daniel Gabriel Fahrenheit?

400

What is it called when something goes directly from a solid to a gas?

What is sublimation?

400

How do you find the volume of an irregular object?

1.  Fill a graduated cylinder with water.

2.  Record the amount of water in it.

3.  Drop the object in the water.

4.  Record the difference in the water levels; this is your volume.

400

Burning wood is which type of reaction?

What is an exothermic reaction?

400

Gas turns into me when it condenses. What am I?

What is a liquid?

400
Who invented the flask that has a cone shaped bottom and a thin neck?
Who was Emil Erlenmeyer?
500

What is it called when molecules stop moving entirely?

What is absolute zero?

500

How dense does something have to be to sink in water?

What is >1 g/cm3

500

What is the difference between an endothermic reaction and an exothermic reaction?

What are exothermic reactions RELEASE heat energy into the surroundings, and endothermic reactions ABSORB energy?

500

What is a fourth state of matter? What is one of its common forms?

What is plasma? What is fire?

500

What are Newton's Laws of Motion?

1.  An object in motion stays in motion, and an object at rest stays at rest, unless acted upon by a force.

2.  Force equals mass times acceleration. (F=ma)

3.  For every reaction, there is an equal and opposite reaction.

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