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Worksheets7th grade science 2019
Total questions: 85
Worksheet time: 43mins
All matter is made of___________
energy
atoms
electrons
compounds
Neutrons and protons are located in the cell's middle, called the ________________
nucleus
electron cloud
core
center
What part of the scientific method is this an example of?
Energy and matter are cycled in an ecosystem NOT destroyed.
True
False
What are two things EVERY living thing needs to survive?
Air, Water
Water, Shelter
Shelter, Food
Fortnite, Wifi
What did Ms. Higgins do for a sport in college?
Lacrosse
Dance
Soccer
Napping
Atoms combine to make ________________
Compounds
Molecules
Less atoms
A polyatomic molecule has LESS than 2 atoms (ex. CO2)
True
False
A diatomic molecule has EXACTLY 2 atoms. (ex. O2)
True
False
The independent variable in the experiment is _____________.
What I change
What stays the same
What depends on what I change
How many oxygen atoms are in the molecule H2O?
3
2
1
0
A change in SHAPE or COLOR is an example of ______________.
A chemical change
A physical change
A mathematical change
An EXOTHERMIC reaction ________ _________ heat.
Has no
Gives off
Takes in
An ENDOTHERMIC reaction takes in heat
True
False
Rusting is when iron and oxygen combine to form a new substance (rust). This is an example of a CHEMICAL change.
True
False
Ms. Higgins' dog is named
Fluffy
Leo
Munchkin
Boo
Water freezing outside is a _________ change.
Chemical
Emotional
Physical
Mental
What is Ms. Higgins' boyfriends name?
None
John
James
Michael
If Ms. Higgins were an animal she would be a _________.
Dolphin
Dog
Dragonfly
Dinosaur
Ms Higgins favorite color is _________
Blue
Yellow
Purple
Green
Weather is__________________
The pattern of the climate around Earth
Describes only the temperature of an area
The daily state of the atmosphere
causing global climate change
Which of the following does NOT make up the weather?
Temperature
Climate
Humidity
Air pressure
Wind
How is climate different from weather?
Climate is over a longer period of time and describes local weather
Climate is over a short period of time and is global
Climate is over a longer period of time and is global
Climate is the same as weather
Weather____________
Can change in a few hours, is in one specific location
Changes over many years, describes the whole world's temperature
Is a pattern over millions of years in a large region
is always accurately predicted on my weather app
These are all types of climate EXCEPT
Tropical
Dry
Mild
Polar
Sunshine
What is the greenhouse effect?
The process by which heat is released into outer space
The process by which gases in Earth's atmosphere trap heat and warm the Earth
The process by which the Earth rotates around the sun
The process by which plants and animals find food to eat
Are greenhouse gases ALWAYS bad?
No! They help trap heat and some of this is necessary for us to live comfortably and for plants to grow.
Yes! Greenhouse gases are always bad, we do not want them in our atmosphere.
This gas is a HUGE contributor to global warming because it traps too much heat in the atmosphere.
H2O
H2
CO2
O2
CO2 occurs naturally but WE make more of it by......
Exhaling
Driving cars
Using factories
All of the above
What are fossil fuels?
Renewable resources that we should use to help our Earth
Non renewable resources that will run out
What are fossil fuels made from?
From organisms that lived millions of years ago
From recycled materials
From water, wind, sun, and food waste
Instead of fossil fuels we should use ALL of these EXCEPT
Wind power
Solar power
Biofuel
Natural gas
Examples of fossil fuels include_______________
Natural gas
Manure
Coal
Oil
What is the effect of mining on the environment?
It can help make room for new trees to grow
It can help the environment because fossil fuels fuel are good for the ecosystems
It can cause damage to ecosystems and contaminate water sources
It causes big holes in the ground but will not harm water supplies
Fracking is__________________
The technique used to mine natural gas by opening up cracks underground to release stored fuels
The technique used to mine oil from underneath the oceans
The technique to harvest power from nuclear waste
The technique to gather kinetic energy from the wind
Fracking causes all of the following problems except_________
Environmental damage to ecosystems
Air pollution
Water pollution
Harm to humans' health
Overpopulation issues
Renewable energy ________________________
is a great option for the future!
is never going to happen!
What was the Lorax's message?
Unless someone like you cares a whole awful lot, nothing is going to get better, it's not.
It's over! You ruined everything!
Yum, I like marshmellows
How many sisters does Ms. Higgins have?
None
One
Two
Three
What is Ms. Higgins favorite sports team?
Boston Bruins
Boston Red Sox
Boston Celtics
New England Patriots
Climate change is ___________
Real! And we can do something about it!
Fake news! Fake news!
What percentage of Nike products contain recycled materials?
5%
25%
75%
90%
DI atomic molecules have ______ elements but POLY atomic molecules have ________ elements
Two, more than two
Three, more than three
Two, less than two
None, two
Is glucose (sugar) polyatomic or diatomic? C6H12O2
Diatomic
Polyatomic
Neither
Are plastics made of simple or complex molecules?
Complex, hard to break down
Simple, easy to break down
Complex, easy to break down
Simple, hard to break down
Has plastic production increased over the past 100 years?
Decreased
Stayed the same
Increased
How long would it take a water bottle to break down in the environment?
over 2 years
over 10 years
over 50 years
over 200 years
over 400 years
How many TOTAL atoms are in water, H2O?
One
Two
Three
Four
What is energy?
The ability to run fast
The ability to do work
The ability to think smart
The ability to eat food
The Law of conservation of energy states that energy is neither ___________ nor ____________.
Made, taken away
Seen, modelled
Eaten, demolished
Created, destroyed
Potential energy is ____________________________
Movement energy
Mental energy
Stored energy
Kinetic energy
Kinetic energy is the energy of __________________
Potential
Movement
Food molecules
Humans
What is thermal energy and how do we measure it?
The energy made by heat, measured with a thermometer
The energy made by cold air, measured with a thermometer
The energy made by water, measured with a graduated cylinder
The energy made by movement, measured with a scale
HIGH thermal energy has molecules moving ______________
Very fast
Very slow
At a medium pace
What is TEMPERATURE?
The TOTAL kinetic energy of particles of matter
The AVERAGE kinetic energy of particles of matter
The TOTAL potential energy of something
The AVERAGE thermal energy of something
The movement of particles in a SOLID state is____________
Particles are free moving with no fixed positions
Particles are moving quickly and are far apart
Particles vibrate in fixed positions
In a LIQUID state
Particles are free moving
Particles do not move around
Particles in the GAS state move ________
Fastest, and are far apart
Slowest, and are close together
Medium speed, and are far apart
Medium speed, and are close together
TRUE OR FALSE - All matter has thermal energy
TRUE - All matter has thermal energy, not just hot stuff, because matter is constantly moving!
FALSE - Only hot things have thermal energy, not cold things or solid materials
________ things have HIGH kinetic energy; _______ things have LOW kinetic energy
Hot; Warm
Hot; Cold
Cold; Hot
Freezing, Hot
What percentage of the Earth is covered in WATER?
about 11%
about 31%
about 51%
about 71%
Which has the MOST thermal energy?
A hot cup of tea
A warm bathtub of water
A small frozen pond
A large frozen lake
Generally, objects with MORE _______ have a HIGHER thermal energy
potential energy
mass
kinetic energy
cold temperature
Where is the HIGHEST POTENTIAL energy?
At the bottom of a hill
In the middle of the hill
At the top of the hill
Which has the HIGHEST KINETIC energy?
A snail
An Olympic Sprinter
A cheetah
Ms. Higgins
What is the BASIC unit of all LIVING things?
Atoms
Molecules
Cells
Organs
All _______ are produced from other _______
atoms, cells
cells, molecules
cells, cells
cells, organs
What are the "mini organs" inside all cells that help them perform work?
Organisms
Organs
Organza
Organelles
Only plant cells have this organelle, which help make energy from sunlight
Mitochondria
Nucleus
Cell membrane
Chloroplasts
What does the nucleus of the cell do?
It store's the cell's genetic information
It helps makes proteins
It cleans up the wastes in the cell
It lets objects in and
What is the level of organization of living things? Smallest to largest
Cells, Organisms, Tissues, Organ Systems, Organs
Cells, Tissues, Organs, Organ Systems, Organisms
Cells, Body, Organs
Organs, Tissues, Organisms
What are somethings that YOU can do to help the Earth?
Recycle
Use less water
Advocate for renewable energy
All of the above and more!!!
Do we have a lot of time before climate change permanently hurts our word?
Yes! Tons of time!
No! It is already happening and we need to act now to stop it!
We have some time before it harms people!
