Font size
Worksheets6th Chemistry Review (with M,NM, ML)
Total questions: 40
Worksheet time: 1hrs 20mins
Particles (molecules) in a ______________________ have more energy than the other states of matter.
Solid
Liquid
Gas
Plasma
Which process could cause a material to change state from gas to liquid?
Adding heat
Adding energy
Removing particles
Removing energy
How can you stop the movement of particles?
Increase the temperature
Decrease the temperature
You can't.
Hold them still with your hands.
Removing energy from particles makes the particles
move faster
move slower
stop moving all together
remain the same
UP and DOWN columns on the periodic table are
groups
periods
SIDE TO SIDE rows on the periodic table are
groups
periods
What Group is Magnesium in?
3
2
4
5
Is Magnesium a Metal, Non-Metal, or Metalloid? (Use your periodic table as a guide)
Metal
Non-Metal
Metaloid
Which box has a higher density?
A
B
They are the same
You are given a mystery object in science class. Your teacher asks you to determine if your object is more or less dense than water. You place the object in the water and it sinks. What statement would best describe this situation?
The mystery substance is denser than water.
Water is denser than the mystery substance.
They both have the same mass.
The mystery substance must be hollow.
Which of the following describes a precipitate?
a new liquid forms when a solid reactant is heated and melts
a new solid product formed from two aqueous reactants
a new gas forms when a solid is dissolved in a liquid
bubbles form when two aqueous reactants are mixed
a new solid forms when an aqueous reactant freezes
All of the following are indicators of a chemical reaction except one. Which one is NOT an indicator that a chemical reaction has taken place?
the production of heat or light
a color change
the production of gas bubbles
the dissolving of one substance in another
an odor change
Four students performed four different investigations by combining different substances. Which of the observations is most indicative of a chemical reaction?
investigation 1
investigation 2
investigation 3
investigation 4
In a container, a solid consisting of clear crystals is combined with a blue liquid and the following observations are obtained.
Of the four observations listed, how many indicate a new substance was formed?
1
2
3
4
An aqueous, cloudy, white baking soda solution was combined with solid, powdery, white calcium chloride. Once combined, the temperature of the test tube increased and bubbling occurred creating an aqueous, cloudy, white solution with a flaky, white solid. What indicators of a chemical change are present?
energy change
Color change
gas bubbling
precipitate formation
Which tools are best for separating a mixtures of sand, iron filings, and water?
Hot plate and filter
Tweezers and filter
Filter and magnet
Magnet and hot plate
Which substances, when mixed together, maintain their original physical properties?
gravel and water
wood chips, water and sand
sand and water
all of the above
All of the following are examples of containers filled with mixtures EXCEPT -
a jar filled with trail mix
a glass filled with lemonade
a bowl of cereal with milk
a cup of fruit salad
A student makes a garden salad by stirring lettuce, tomatoes, carrots, and croutons together in a bowl. Why is the garden salad a mixture?
the student cut the vegetables into equally sized pieces
the vegetables are combined by maintain their physical properties
the croutons cannot be taken out of the salad
the salad grew from a garden
When separating saltwater using a hot plate, what precaution should students use?
unplug the hot plate if water splashes on the cord
follow the teacher's instructions and wear safety goggles
leave the hot plate plugged in after the investigation is complete
follow the teacher's instructions to record results in a notebook
Which mixture can be separated using a filter?
sand and iron filings
saltwater
sand and water
none of the above
A cup of orange juice with pulp is poured into a glass. Which of these procedures could be done to separate the juice from the pulp?
pour the juice through a coffee filter
heat the juice in a pot until boiling
pour the juice in another cup
allow the mixture to settle, leaving the pulp at the bottom of the glass
Which of the following mixtures can be separated with a magnet?
sand and salt
sand and iron filings
sugar and water
saltwater
All of these can be separated easily EXCEPT -
nuts, bolts, and screws
powdered drink mix, sugar and water
sand and water
iron filings and sand
A mixture of iron filings and chalk dust is placed on a plate. Which of the following could be done to gather the iron filings?
Pour the mixture into a funnel
Put the mixture in a pot on the stove
Run a magnet over the mixture
Filter the mixture through a strainer
