Three States of Matter
Corn Starch and Flour
Light
English Words
Random
100
What is the state of water?
A) Solid
B) Gas
C) Liquid
C) Liquid
100
When does corn starch mud act like a solid?
When you hit it quickly.
100
The angle of incident is ____________ the angle of reflection.
A) less than
B) equal to
C) more than
B) equal to
100
What is a solid?
固体
100
When making the corn starch mud, did we put more water or more corn starch (in terms of volume)?
corn starch
200
What is the state of ice?
A) Gas
B) Liquid
C) Solid
C) Solid
200
When does corn starch mud act like a liquid?
When it flows slowly or when you push slowly.
200
Trace with your finger on the screen how light travels.
200
What is the English word for a 液体
liquid
200
How can water change into gas?
Teacher decides. Correct answers include:
- water evaporates
- water boils
300
Give one example of a matter changing states.
Teacher decides. One example: Ice melts into water.
300
How do you prevent sinking into a corn starch mud bath tub?
Dancing quickly on it. Move your feet quickly.
300
What is the value of the unknown angle (theta) in the following diagram?
60 degrees
300
What is heat?
热
300
Liquids have...
A) A definite shape and volume
B) A definite shape but no definite volume
C) No definite shape but a definite volume
D) No definite shape or volume
C) No definite shape but a definite volume
400
Gasses can:
A) flow and be squeezed
B) NOT flow but can be squeezed
C) flow but CANNOT be squeezed
D) NOT flow nor be squeezed
A) flow and be squeezed
400
What is different between flour water mixture (dough) and corn starch mud?
Corn starch mud can become hard when being hit quickly, whereas dough would still be soft.
400
Which diagram shows the correct image of the key in a plane mirror?
D
400
What is the English word for 反射？
Reflection
400
What is 潜望镜 in English?
Periscope
500
Liquids can:
A) flow and be squeezed
B) NOT flow but can be squeezed
C) flow but CANNOT be squeezed
D) NOT flow nor be squeezed
C) flow but CANNOT be squeezed.
500
Why does corn starch mud act like both solid and liquid? What is the reason behind it?
When one hits corn starch mud quickly, the water molecules run away while the corn starch molecules stay behind and form a hard layer.
When water is mixed uniformly with corn starch, then it can flow together with corn starch, thus acting like a liquid.
500
When you look at your face in a mirror, where does your face appear to be?
A. an equal distance behind the mirror to what you are in front
B. a long way behind the surface of the mirror
C. on the surface of the mirror
D. just in front of the mirror
A. an equal distance behind the mirror to what you are in front
500
What does squeeze mean?
捏
500
If the blue line is a mirror, which is the correct reflection of the blue shape?
B the pink one