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WorksheetsWeek 3 JC - Periodic Table, Chem Reac, Common Gases, Materials
Total questions: 116
Worksheet time: 4hrs 53mins
A substance that is formed as the result of a chemical reaction is a __________________
Product
Reactant
Starters
Enders
A change in the shape of an object is an example of _________________.
a chemical change
energy
an endothermic change
a physical change
Which one shows that a chemical reaction has occurred?
dissolving
melting
formation of a gas
bending
2H2 + O2 --> 2H2O
2H2 + O2 --> 2H2O
Increasing the ____ causes the particles (atoms
or molecules) of the reactants to move more quickly so that
they collide with each other more frequently and with more
energy.
Catalyst
Surface Area
Temperature
Concentration
________ is the measure of how much area of an
object is exposed.
Surface Area
Catalyst
Temperature
Concentration
An enzyme's role is to...
speed up biological chemical reactions.
balance chemical reactions.
reorganize groups of atoms into different substances.
tell the cell when to start making more energy.
The ____________ states that atoms, ions, or molecules must collide in order to react.
transition state
activation energy
rate law
collision theory
Which of the following would increase the rate of a chemical reaction?
Freezing the chemicals
Increasing the temperature of the reagents
Removing a catalyst
Using less chemicals
Which of the following would increase the rate of a chemical reaction?
Removing a catalyst
Diluting the chemicals
Decreasing the temperature
Adding a catalyst
Which of the following would increase the rate of a chemical reaction?
Lowering temperatrure
Removing a catalyst
Making the chemicals more concentrated
Using less chemicals
Which colour on the graph would represent the solution with the higher temperature?
Red
Blue
None
Both
Which colour on the graph would represent the solution with a catalyst?
Red
Blue
Both
None
Which of the following would increase the rate of CO2 made using marble chips and HCl?
Lowering the temperature
Crushing the marble chips
Using less acid
Using bigger marble chips
Which of the following is not made when marble chips are mixed with HCl?
CO2
CaCl2
H2O
O2
Which of the following lines represents the chemical with the lower concentration?
Red
Blue
Both
None
Which of the following colours represent the solution with the largest particle size?
Red
Blue
Both
None
An enzyme (biological catalyst) increases the rate of a reaction.
True
False
The water cycle is powered by what 2 sources?
Gravity
Earth's tectonic plates
The sun
Earth's internal heat
Transpiration is...
the process by which surface water seeps into the ground through the soil and rock layers
the transport of water from plant roots to leaves, where it evaporates into the atmosphere
the process by which water falls to the ground from clouds in the atmosphere in the form of rain, sleet, snow, or hail
the change in state from a liquid to a gas
The change in state from a gas to a liquid is...
Transpiration
Evaporation
Condensation
Infiltration
True or false: Ice or any frozen liquid is NOT apart of the water cycle?
True
False
Which is an example of a renewable natural source?
Wood
Plastic
coal
oil
What two categories are natural resources divided into?
common and precious
rare and common
inexpensive and expensive
renewable and nonrenewable
Geothermal energy can be harnessed for energy production by transferring energy from hot rocks to _________.
sand
water
oil
iron
What is the last step in ordering soil formation?
Bacteria and fungi break the rock down chemically. They also decompose the remains of plants and animals, adding organic matter and nutrients to the sediment.
Rock is weathered and forms sediment.
More organic matter is added to the soil. Plants and burrowing animals add air to the soil.
True or False: Most of earth's groundwater is nonrenewable
True: some areas of the world have plentiful supplies of groundwater, while others do not, but it is a resources that is used up faster than it is replenished
False: It is not a resource that is used up faster than it is replenished, or exists in a limited supply.
_____ is a natural resource that formed millions of years ago from the burial of marine organisms.
Petroleum
wood
groundwater
geothermal energy
What is this material?
Plastic.
Metal.
Glass.
Cardboard.
Which picture is showing us clay?
Which object is made of glass?
What is the window made of?
It is made of wood and wool.
It is made of wool and glass.
It is made of paper and fabric.
It is made of wood and glass.
What is this object made of?
It is made of rubber.
It is made of cotton.
It is made of leather.
It is made of glass.
What is this?
It is cement.
It is rubber.
It is fabric.
It is glass.
What is this?
Paper.
Praprer.
Cotton.
Glass.
What are the curtains made of?
They are made of gold and glass.
They are made of fabric.
They are made of glass.
They are made of wood.
Which material is gold?
Which material is cardboard?
What is this object made of?
It is made of cardboard.
It is made of glass.
It is made of rubber.
It is made of clay.
Which material is the cement?
What is that sofa made of?
It is made of fabric.
It is made of wool.
It is made of leather.
It is made of cotton.
What is this material?
It is wood.
It is silver.
It is cardboard.
It is concrete.
Which of this materials is bendy?
Which of this materials is hard and rigid?
Which of this materials is soft and bendy?
Choose the correct option:
Glass isn't transparent and rigid.
Glass is bendy and soft.
Paper is transparent.
Glass is transparent and rigid.
Choose the correct option:
You can squash a stone.
You can squash silver.
You can squash clay.
You can squash glass.
Choose the material you can stretch.
If the plant population decreased, the amount of carbon in the atmosphere would _________.
Stay the same
Increase
Decrease
oxygen is a gas produced by _____ and used by ________
plants and animals
photosynthesis and carbon dioxide
animals and plants
carbon dioxide and photosynthesis
Which is a true statement?
Humans depend on oxygen, plants depend on carbon dioxide
Plants produce carbon dioxide
Humans depend on carbon dioxide, plants depend on oxygen
Humans don't depend on plants for the air they need
Plants use ____________ to make their own food
Water
Sunlight
Carbon dioxide
All of these
Choose all the items made out of carbon
Food
Animals
Plants
Tennis Racket
Pretty much everything
How does carbon get from animals and back into the atmosphere? (CHOOSE ALL THAT APPLY)
Respiration (breathing)
After they die, they are broken down by decomposers
Photosynthesis
None of these
How do animals get carbon?
Photosynthesis
They absorb it from the atmosphere
The sun
They eat other plants and animals
What is CO2?
Air
Oxygen
Carbon Dioxide
Dioxide
What are the top things that contribute to global warming? (Choose more than one)
Cow Farts
Burning Gas in cars and factories
Cutting down Trees
Solar Power
What are some ways we can fight global warming? (Choose all that apply)
Eat chicken instead of beef
Plant trees
Recycle
Tell others to help fight
