You matter!
Has mass and occupies space.
What is matter?
What happens when something goes from one state (solid, liquid or gas) to another.
What are the states of matter?
Has a pH lower than 7, is sour and sharp-tasting (like a lemon), reacts with metals, turns litmus paper red.
What is an acid?
A homogeneous mixture in which one or more substances (solutes) are dissolved in another substance (solvent).
What is a solution?
Involves running a mixture through a filter (often made of paper or fabric).
What is filtration?
The smallest particle in a substance.
What is an atom?
Refers to things that do not have mass and do not occupy space.
What is non-matter?
The cause of a phase change.
What is a temperature change?
Has a pH higher than 7, tastes bitter and harsh (like baking soda), is slippery to the touch (like soap), does not react with metals, turns litmus paper blue.
What is a base or alkaline solution?
A solution that uses water as a solvent.
What is an aqueous solution?
Involves letting the liquid component of a mixture evaporate at room temperature.
What is evaporation?
Atoms have a nucleus that contains these particles.
What are protons and neutrons?
Three things which are non-matter
What are energy, light d sound?
A measurement of how much matter is in a substance.
What is mass?
Has a pH of 7 and does not change the colour of litmus paper.
What is a neutral solution?
The universal solvent.
What is water?
Involves heating a mixture until it boils in order to collect the gases produced. Then the gases are cooled in a condenser or on ice until they liquefy.
What is distillation?
These revolve around the nucleus in orbitals.
What are electrons?
Describes the way the particles (atoms or molecules) are organized.
What are the states of matter?
A three-dimensional (length, width, height) measurement of the space occupied by an object or a substance.
What is volume?
A property that helps identify a substance or a group of substances.
What is a characteristics property?
Lets us separate the components in a heterogeneous mixture using gravity.
What is decantation?
He believed that matter was made of infinitesimally small particles called atoms.
Who was Democritus?
The simplest form of matter.
What is an element?
The three states of matter?
What are solid, liquid and gas?
A measure of the degree of agitation of the particles of a solid, a liquid or a gas.
What is temperature?
Used to describe a substance, an object, a group of substances or a group of objects.
What is a property?
Relies on the same principle as decantation, only the mixture is placed in a large, fast-spinning machine called a "centrifuge."
What is centrifugation?
He said: All matter is composed of extremely small particles called atoms. Atoms of a given element are identical in size, mass, and other properties.
Who was John Dalton?
An element is made up of ...
What is a single type of atom?
The particles are strongly linked to each other and it has a specific shapes.
What is a solid?
When the volume of a solid, liquid or gaseous substance increases because of a rise in temperature.
What is thermal expansion?
The result of a physical change that happens when two or more substances are combined.
What is a mixture?
Made up of two or more substances that cannot be distinguished just by looking at them
What is a homogeneous solution?
A group of two or more chemically bonded atoms.
What is a molecule?
Lists all of the known elements and provides basic information about them.
What is the Periodic Table of Elements?
Takes the shape of the container it is in, has a definite volume.
What is a liquid?
Will occupy the entire space of the container it is in.
What is a gas?
Made up of two or more substances that can be distinguished just by looking at them.
What is a heterogeneous mixture?
Involves running a mixture through a sieve that has holes of a certain size.
What is sieving?
The most abundant element in the Universe.
What is hydrogen?
Created the first periodic table of the elements in 1869, there were 61 elements at this time.
Who was Dmitri Mendeleev?