Solid, Liquid or Gas
Physical vs. Chemical Changes
Atoms
Acids and Bases
Science Riddles
100
This state of matter has a definite (fixed) shape and volume.
What is a solid?
100
Example- ripping a piece of paper
What is a physical change?
100

The basic unit of matter (living and nonliving things).

What are atoms?

100
Lemon juice is an example of this.
What is an acid?
100
A group of cows is called a herd. A lion family goes by this word.
What is a pride?
200
This state of matter has a definite volume but takes the shape of its container.
What is a liquid?
200
Example- breaking bread
What is a physical change?
200

What are apples?

a fruit

200
Sodium Hydroxide (Lye) is an example of this. It makes substances slippery.
What is a base?
200
I'm frozen rain, but not just sleet. My name can also mean to greet.
What is hail?
300
This state of matter expands to fill the room and has low density.
What is a gas?
300
Matter can not be created nor destroyed.
What is Law of Conservation of Matter?
300
Negatively charged particle on an atom.
What are electrons?
300
pH is 7
What is neutral?
300
This fluid's name is what's in question. I start the process of digestion.
What is saliva?
400
State of Matter- SNOW
What is a solid?
400
The scientific name for when iron mixes with water and oxygen.
What is iron oxide?
400
The number of protons plus neutrons/ also makes up the nucleus of an atom
What is the atomic mass?
400
Adding an acid to a basic solution
What is neutralization?
400
Wind and water are my companions. I hollow out caves and carve out canyons.
What is erosion?
500
State of Matter- CLOUDS
What is gas?
500
Solid turning directly into a gas.
What is sublimation?
500
Came up with the current model of the atom that we still use today.
Who is Niels Bohr?
500
A measure of acidity or basicity of of a solution.
What is pH?
500
Oil and coal and gas are a few. This energy source we can't renew.
What are fossil fuels?
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