Physical Science Semester 1 review

Which is a physical change?

Change in color, gas made, precipitate forms are all way to know what has happened?

Matter that has a definite volume, but no definite shape is a

What groups of elements are poor conductors, have a low boiling point and are brittle?

If the atomic number if 10 and the mass number is 20, how many protons does this atom have?

A horizontal row across the periodic table is a

Atoms gain or lose electrons to become

What theory says that matter is always in motion?

What part of an atom has a negative charge?

The releasing of energy is what type of reaction?

The ability to burn in the presence of oxygen is

What types of element are malleable, ductile and conduct heat and electricity?

Corn syrup has high

What are the 2 areas of physical science?

Good insulators at low temps, good conductors at high temps describes

A malleable object that conduct electricity would be made of

What helps to see things too big or too small?

A vertical column on the period table is called a

If electrons are in the lowest energy level they are in what state?

One element replaces another element in what type of reaction?

Where would you find the electrons

An atom has 6 protons and 7 neutrons, what is the mass number

The phase change that is the reverse of condensation is

An atomic mass unit or AMU is based on what

What has no definite shape and no definite volume?

During a phase change the temperature

Changing from a solid to a liquid is called

The number atomic number is the number of

Who gave atoms their name?

The tendency for an atom to react is related to its

The region where an electron is found is called the

Adding 2 substances together to make one substance is called 

A jar of mixed nuts is what type of mixture

What type of bond shares electrons?

A physical representation of an object or event is a

Law of conservation of mass says then number of atoms have to 

Breaking down a compound into simpler substances is called

Who discovered the nucleus of an atom?

The number in front of compounds or elements used to balance equations are called

What is the correct way to write the following  trinitrogen tetrafluoride?

A substance with a melting point of 0 C and boiling point of 100 C is

99% of the universe is made of

A system of knowledge and the methods used to find that knowledge is what?

What type of bond transfers electrons to form compounds and form solids at room temperature?

The SI unit of mass is the

What has a definite volume and definite shape?

What type of bonds form alloys?

Which number is most precise?

If it says SHAKE WELL it is most likely a

What are the building blocks of matter?

What is the correct name for this molecule?    CO

If an element has a mass number of 10 and atomic number of 5--how many neutrons does it have?

Who believed that all particles were made of earth, wind, fire and air?

A substance made of one kind of atom is a(n)

The sum of the protons and neutrons is called the

Protons and neutrons are found where in an atom?

Which of the following is a pure substance?

Collisions of atoms with the walls of a closed container cause what?

In what step of the scientific method is information gathered using the senses?

A change from a solid to a gas without becoming a liquid first is called

What is the correct way to name MgS?

2 or more elements in a fixed proportion forms a