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WorksheetsScience Final Revision
Total questions: 24
Worksheet time: 12mins
A material that cannot be broken down into anything simpler by chemical reactions is a(n) _____________.
mixture
element
metal
All elements in a column of the periodic table have
similar properties
the same number of protons
the same atomic mass
nothing in common
Which test could a student do to determine if an object is a metal?
Pound it with a hammer to see if it bends.
Scratch it on glass to see if it leaves a mark.
Place it in water if it sinks.
Add it to hydrochloric acids to see if it reacts.
The drawing shows a water molecule. The arrowing is pointing to a(n)
electron
atom
proton
nucleus
Scientists can use a scanning tunneling microscope to
study the shape of a water
form new elements
change the density of an object
measure an object's weight
In the table, which terms should be placed in the column heading?
elements, metals, nonmetals
nonmetals, metalloids, metals
gases, liquids, soilds
metalloids, solids, liquids
Which would make a sugar and water solution more dilute?
let water evaporate away
add sugar and stir
add water and stir
heat to boil away water
Which processes release carbon dioxide?
ice melting
salt being stirred into water
wood burning
rain falling
Which compound could be tarnish on a metal?
CO2
C6H12O6
HCO3
Al2O3
Which acid is in our stomachs?
sulfuric acid
nitric acid
hydrochloric acid
phosphoric acid
The chemical reaction on the picture shows the formation of a(n)
mixture
compound
acid
salt
The graph compares the solubility of two substances. Which statement can you conclude?
At 0oC, sodium is more soluble in water than sodium chlorate.
At 100oC, the two substances have the same solubility.
The solubility of sodium chlorate increases as the water temperature increases
Sodium chloride is not soluble
A student is successfully separating the mixture in the beaker as shown in the picture. Which substances are most likely in the beaker?
sand and iron filings
water and salt
sand and water
baking soda and vinegar
Which describes how objects tend to resist changes in motion?
distance
speed
time
inertia
If a car accelerates on a level road, it gains
chemical energy
kinetic energy
light energy
potential energy
A fast-moving and heavy ball could knock over many lighter objects. This illustrates the principle of
deceleration
friction
momentum
balanced forces
If the same force is applied to each object, which will have the greatest acceleration?
What will happen if a feather and a ball are released from the same height at the same time?
The feather will hit the ground
The ball will hit the ground first
Both objects will hit the ground at the same time
Both objects will hit the ground with equal force
Which is the position of the hospital?
southeast of the town hall
directly east of the town hall
northeast of the town hall
directly north of the town hall
Which statement can you conclude from the photo?
The car had the greatest acceleration
the motorcycle had the greatest acceleration
both the car and the motorcycle had the same acceleration
both the car and the motorcycle had the same speed
Study the picture. Which would increase the boat's acceleration?
have both person row
add more bags to the boat
flatten the front of the boat
stop rowing
What can be done to reduce the force of attraction between Earth and a body?
reduce the distance between body and ground
increase the body mass
increase the distance between the body and the ground
increase the air temperature
Calculate the speed of an athlete who traveled a distance of 10 meters in 5 seconds.
50 m/s
15 m/s
2 m/s
no answer
How do I feel for the exam tomorrow?
