Chemistry Flashcards
What can we use elements for
A.building bridges B. Making clothes C.curing disease D.Powering cars C.all of the above
Every substance in the universe is made up of building blocks known as: A.Lego B. Elements C.Atoms D. Scientific
Atoms
Is an element a substance?
Yes
Name four properties of metallic elements
Mercury, Iron, copper and Gold
Remember MICG
Air is made up of two gases , name them?
Oxygen and Nitrogen
Name four non metallic elements
Carbon,iodine,chlorine and sulfur
Remember CICS
Name the table scientists display elements and symbols
Periodic table
What is a periodic table used for?
To display elements and their symbols
Who uses a Periodic table?
Scientists
What’s the difference between an element and a compound?
An element is made up of one type of atom and a compound is made up of two or more atoms.
Elements are the basic materials for building the world around you.
Name 3 elements
Chairs, skin, windows, stars, sun,desks, ocean
Name two ways the world changes?
Physical changes and chemical change
Name types of physical changes?
Eg ice melting, crushing a can, mixing
What is a key feature of physical change?
During physical change no new substances are formed
Name some types of changes of state
Expansion, contraction, melting, evaporation, condensation, freezing, dissolving
