Particle Theory
This is anything that has mass and takes up space.
What is matter?
This is the smallest particle; it cannot be divided further. Also known as the 'building blocks of matter.'
What is an atom?
This type of substance has only one element or compound.
What is a pure substance?
These are made of more than one substance.
What is a mixture?
This affects the speed at which particles move.
What is temperature?
This is a group of atoms bonded together. For example, hydrogen (two hydrogen atoms bonded together).
What is a molecule?
Hydrogen is also an example of this, a type of pure substance that cannot be broken down further. These are found on the periodic table, and are the basic 'ingredients' for all matter.
What is an element?
True or false: Water is a mixture of hydrogen and oxygen.
What is false? (Water is a pure substance, because all particles in the substance are the same)
Particles are always moving (even in solids) because they have this form of energy.
What is kinetic energy.
Atoms have a centre, or 'nucleus.' The nucleus is made up of these two types of particles.
What are protons (positively charged) and neutrons (negatively charged)?
Water (2 hydrogen atoms, one oxygen atom) is an example of this type of substance, because it only contains one compound.
This type of mixture is not uniform; in other words, the components can be separated physically (for example, cereal and milk.)
What is a heterogeneous mixture?
In this state of matter, particles are very far apart and move in any direction because the attraction between them is weak.
What is a gas?
These parts of atoms fly around the nucleus at very high speeds. They have a negative charge and can be transferred between objects.
What are electrons?
This element can be found in the air we breathe.
What is oxygen?
This type of mixture is uniform, meaning all the particles are equally mixed, and it cannot be separated physically (for example, orange juice mixed with water)
What is a homogenous mixture?
In this state of matter, particles are slightly farther apart than in a solid, and particles are able to 'slide' past each other.
What is a liquid?
Atoms in molecules are held together by..
What are 'bonds.'
This element is mixed with other metals (to make it stronger) and is used to make jewelry.
What is gold?
Our blood is an example of this type of mixture.
What is a homogenous mixture?