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Worksheets8th Grade Science Review
Total questions: 20
Worksheet time: 20mins
What subatomic particles are in the nucleus of an atom? (check 2)
Protons
Electrons
Belectrons
Neutrons
C6H12O6 How many atoms are in this chemical formula? (type just the number)
(a)
What do valence electrons determine?
The identity of the atom
The shape of the atom
The size of the atom
The reactivity of the atom
If it is summer in the northern hemisphere, what season is it in the southern hemisphere?
Summer
Autumn
Winter
Spring
What are spring tides?
Tides that happen during the spring
The highest high tides & the lowest low tides
Moderate tides
Is the Earth going around the sun called rotation or revolution?
Rotation
Revolution
Choose the waning crescent
Select the transform boundary
None of the above
What are the abiotic factors of this ecosystem?
Raccoon, deer, fish, frog
Grass, flowers, leaves
Water
Water, deer, leaves
Jacob walked 25 miles in 50 minutes. What is his average speed? (no units)
(a)
There is a star that has a luminosity of 108 & has a temperature of around 20,000 K. What is it?
Main Sequence
White Dwarf
Blue Giant
Red Giant
What stage of life does a star stay in for most of its life?
Nebula
Supernova
Main Sequence
Giant
Which organism(s) is/are the primary consumer(s) in this food web?
Lion, kite
Green plant
Wild cat, owl, snake, jackal
Mouse, rabbit, goat
What are the characteristics of metals? (Check 2)
Shiny, malleable,
Dull, breakable
Conductive, ductile
Poor conductors
How many valence electrons does this atom have?
(a)
About how many neutrons does this element have? (no units)
(a)
Which element has similar chemical properties to K (Potassium)?
Ca (Calcium)
Al (Aluminum)
Na (Sodium)
Ag (Silver)
Signs of a chemical reaction are... (select 2)
Temperature change
State change
Oder/Smell
Change in shape
What does this graph represent?
No movement
Constant Speed
Acceleration
Deceleration
Kevin uses 25 Newtons of force to move a box with a mass of 17kg. What is the acceleration? (round to the nearest hundredth, no units)
(a)
