Elements
The building blocks of matter that cannot be broken down into simpler substances.
Elements
A substance formed when two or more different elements are chemically bonded together.
What is a compound
A combination of two or more substances that are not chemically combined and can be separated physically.
What is a mixture?
Using this tool, you can separate sand from water by passing the mixture through paper.
what is filtration?
Anything that has mass and takes up space.
What is matter?
This chart lists all known elements in order of increasing atomic number
What is the Periodic Table
The chemical formula for this common compound, which covers most of the Earth, is H2O
.
What is water?
A type of mixture, like salt water, where the composition is uniform throughout.
What is a homogeneous mixture
This method involves heating a liquid until it becomes a vapor, leaving solid components behind.
evaporation
The three most familiar states of matter are solid, liquid, and this
gas
The smallest unit of an element that still retains its properties.
What is an atom?
Compounds can only be separated into their individual elements by this type of change.
What is a chemical change?
Salad, trail mix, and sand in water are examples of this type of mixture.
What is a heterogeneous mixture?
To separate iron filings from sand, you would use this tool.
magnet
The process of a solid changing directly into a gas without becoming a liquid first.
What is sublimation?
This metal is the only metal that is liquid at room temperature.
What is Mercury
This is the smallest unit of a compound that still maintains the properties of that compound.
What is a molecule
In a mixture, the substances retain their own individual ______.
properties
This technique is used to separate mixtures based on the different boiling points of components.
what is distillation
The amount of matter in an object is called this.
mass
Elements are classified into these three main types based on their properties.
What is metals, nonmetals and metalloids
True or False: Compounds have the same properties as the elements that make them up.
False
A type of mixture where particles are large enough to settle out or scatter light
What is a suspension?
Used in forensics, this method separates components of a mixture (like ink) based on how they move on paper.
What is chromatography
Burning toast is an example of this type of change.
chemical change