WorksheetsScience 7th grade exam practice
Total questions: 15
Worksheet time: 8mins
Define what a element is
Basic building blocks of matter ( name )
Basic building blocks of matter ( physical)
Combination of different atoms
electrons
Why is Hydrogen in family/group one?
It has similar characteristics.
It felt like it .
it has one valence electron.
Who Organized the original PTE?
Dimitri Mendeleev
Albert Einstein
Elon Musk
Sir Issac Newton
Which laws is being applied ? A tire heating up?
Charles
Boyles
What is the atom that has 8 protons and electrons and neutrons?
Carbon
Neon
Silver
Oxygen
Which law is being applied?
Charles
Boyles
The stage of the water cycle where the water turns into a gas from a plant.
Evaporation
condensation
precipitation
Transpiration
What is a good conductor of heat and electricity?
Metals
Non-metals
metalloids
What elements are in this bond?
carbon, Hydrogen, oxygen
Cobalt, Hydrogen
Calcium, hydrogen, oxygen
What is an example of a Physical Properties?
Flammability
rust
combustion
freezing point
What is a molecule?
a combination of 2 or more atoms
a combination of 2 or more elements
group of basic building blocks
a group of compounds
what is a Ionic bond?
A bond a metal and a non-metal and the metal gives away one of their valence electrons to the non-metal until the non-metal have 8 valence electrons
A bond of 2 non-metals where they share valence electrons until one of them have 8 valence electrons
Which type of element has similar characteristics of non-metals and metals?
metals
non-metals
metalloids
what are the columns of the PTE called?
Families/groups
periods
How is the modern PTE organized?
atomic mass
amount of neutrons
atomic number
when they were found
