- Shuffle
Toggle OnToggle Off
- Alphabetize
Toggle OnToggle Off
- Front First
Toggle OnToggle Off
- Both Sides
Toggle OnToggle Off
Front
How to study your flashcards.
Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key
Up/Down arrow keys: Flip the card between the front and back.down keyup key
H key: Show hint (3rd side).h key
PLAY BUTTON
PLAY BUTTON
28 Cards in this Set
- Front
- Back
|
What has a definite shape and definite volume in general, and is the densest state of matter.
|
Solids
|
|
What has no definite shape but has a definite volume in general, and is the second densest state of matter.
|
Liquids
|
|
What has no definite shape or volume in general and is the least densest state of matter.
|
Gases
|
|
What is chemistry?
|
It is the study of matter and it's changes.
|
|
EXPLAIN the meaning of the word element.
|
Elements are the basic building block of all matter. They are pure substances that cannot be broken down into any simpler substances by chemical reactions.
|
|
What are the most common elements in space, and make up 98% of the mass of the universe?
|
Hydrogen and Helium.
|
|
What are the most common elements on the Earth's atmosphere?
|
Nitrogen and Oxygen.
|
|
What does your body consist of?
|
65% oxygen, 17.5% carbon, 10.2% hydrogen, 2.4% nitrogen, 1.6 calcium, and 3.3% of other elements.
|
|
Why is Iron good?
|
Because it can be combined with other metals.
|
|
What is an atom?
|
The smallest unit of an element that retains the properties of that element.
|
|
What is Buoyancy?
|
The upward push of a liquid or gas on an object placed in it.
|
|
What is Corrosion?
|
The gradual wearing away of a metal by combining with nonmetals in its environments.
|
|
What is Density?
|
The amount of mass for each milliliter of a substance; formula is mass of an object divided by its volume.
|
|
What is Ductility?
|
The ability to be pulled into thin wires without breaking.
|
|
What is an Electron?
|
A particle in space outside of the Nucleus of an atom that carries one unit of negative electric charge.
|
|
What is an Element?
|
A pure substance that cannot be broken down into an simpler substances through chemical reactions,.
|
|
What is Malleability?
|
The ability to be bent, flattened, hammered, or pressed into new shapes without breaking.
|
|
What is Mass?
|
A measure of the matter in an object.
|
|
What is Matter?
|
Anything that has mass and takes up space.
|
|
What are Metals?
|
Any group of elements that conducts heat and electricity, has shiny luster, and is flexible.
|
|
What are Molecules?
|
A particle that contains more than one atom joined together.
|
|
What is a Neutron?
|
A particle in the Nucleus of an atom that has no electric charge.
|
|
What are Nonmetals?
|
Elements that are dull, poor conductors, and brittle.
|
|
What is a Nucleus?
|
The center of an atom that has most of its mass.
|
|
What is a Proton?
|
A particle in the nucleus of an atom that carries one unit of positive electric charge.
|
|
What is a Semiconductor?
|
A material that has properties in between conductors and insulators.
|
|
What is Volume?
|
A measure of how much space the matter of an object takes up.
|
|
What s Weight?
|
a measure of how gravity pulls on an object.
|
