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What did we learn in 7th grade science? Flashcards | StudBud
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What did we learn in 7th grade science?
What did we learn in 7th grade science?
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7th Grade science final review
Flashcards
40 cards
F
Practice quiz
P
Host live
L
Questions
40
Answers
1
Conservation of Matter means
all answer choices are correct
matter cannot be created or destroyed
the mass of reactants is the same as the mass of the products
the number of atoms of each element is the same before & after the reaction
2
The plover bird eats the leftover food and bugs from a crocodile's mouth cleaning it. This is:
Mutually benficial relationship
Disguistingism
Commensalism
predator/prey relationship
3
The reactants in a chemical reaction are
always on the left side of the arrow
the "ingredients" of the reaction
always on the right side of the arrow
not required for a chemical reaction
4
Ultimately, all of the energy in the food webs originally come from:
Grass
The sun
The moon
The Earth
5
What is the STRONGEST EVIDENCE to support the theory of continental drift?
Sid from Ice Age said so
the continents kind of look like they fit together, like a puzzle
the presence of the same fossils and rock on different continents
6
In the food web, which organism is the PRODUCER?
Mouse
Lion
Goat
Green Plant
7
What organelle in the cell is where glucose is converted into ATP?
Vacuole
Chloroplast
Cell Membrane
Mitochondria
8
What is the best evidence that a plant ABSORBS sunlight during photosynthesis?
A plant grown in higher temperatures produces less oxygen.
A plant exposed to sunlight is living.
An aquatic plant will do more photosynthesis since it's in water
A plant in the dark doesn't produce oxygen
9
What is the process used by plants to make Glucose and Oxygen?
Mitosis
Combustion
Cell Respiration
Photosynthesis
10
What conditions must COAL be in to change into DIAMOND over a VERY long period of time?
heat and pressure
compaction & cementation
crystalization
complete melting and solidifying
11
Why do scientists do the same experiment over and over again?
They get paid a lot
They want to see if they get consistent results.
They are trying to control to experimental variables
They are having too much fun
12
Which is not a characteristic of living things?
They respond to stimuli
They use energy
They are made of cells that divide
They think for themselves
13
Organisms that make their own food inside their cells are called?
Heterotroph
Magictroph
Consumers
Autotroph
14
How many total oxygen atoms are in the reactants?
0
2
6
3
15
Bees and flowers are what type of relationship?
Parasitism
Stingism
mutually benefical
Commensalism
16
The San Andreas fault is an example of
a shaky line
a divergent plate boundary
a convergent plate boundary
a transform plate boundary
17
Molecules are formed when
elements are glued together.
elements share electrons.
elements collide and stick.
matter is destroyed.
18
Convergent boundaries are
plates sliding past each other
plates moving away from each other
occur mostly between oceanic plates
plates moving toward each other
19
What occurs in plants?
Neither
Only cellular respiration
Photosynthesis and Cellular respiration
only photosynthesis
20
Iron rusting is an example of an EXOTHERMIC reaction because
energy is released by the reaction
it happens outside
energy is absorbed by the reaction
energy is destryed during the reaction
21
Surface tension means
the surface is stressed out.
the surface of water forms a skin-like layer
water will keep it's shape as long as a greater force doesn't interfere.
the water molecules have more cohesion at the surface.
22
If only 10% of energy gets transferred up the food chain, what happens to the 90%?
They don't need it
It gets converted and lost as heat energy
used for living growing, movement and reproduction
It gets wasted
23
Which of the following classifies a sedimentary rock?
low density
presence of straight, horizontal lines
crumbles/scratches easily
all of the answer choices are correct
24
What are the products of cellular respiration?
CO2 and Glucose
Sunlight and CO2
CO2, H20, and Energy(ATP)
O2 and H2O
25
The Colorado River runs through the Grand Canyon, this is evidence to support the idea that the Grand Canyon was formed
by a giant earthquake
by a giant flood
by weathering and erosion
26
Water is "sticky" because
the oxygen and the hydrogen are sharing electrons unequally.
it is a polar molecule.
all of these answers are correct
the water molecule is like a magnet.
27
What do the arrows in the food web represent?
Genetically related organisms
Most important animal
Dominant species
Transfer of energy
28
If you fail to water a plant, what chemical reaction is impacted most?
Chloroplast
metabolism
photosynthesis
cellular respiration
29
What is the name of the process that ALL LIVING THINGS use to take in O
2
and release CO
2
?
Mitosis
Fermentation
Cellular Respiration
Photosynthesis
30
Conway gets a lice outbreak. Lice feed off blood from the human scalp. This is:
Mutualism
Parasitism
Commensalism
Nastyism
31
Volcanoes are only formed at convergent plate boundaries.
True
False
32
In the food web, who is a primary consumer?
Green Plants
Jackal
Snake
Goat
33
Which is typically the MOST DENSE of the rock types?
Igneous
Sedimentary
Metamorphic
34
The Solar System is ~4.6 billion years old. How old is Earth?
200,000 years
4.6 billion years
~4.54 billion years
5-7 million years
35
What is the study of all living things and their interactions?
Economy
Micronomy
Ecology
Biology
36
Earthquakes can occur on or near any type of plate boundary.
False
True
37
How many O
2
molecules are in the reactants?
3
0
2
6
38
Who developed the theory of Continental Drift?
Alfred Wegener
Charles Darwin
Lebron James
Isaac Newton
39
If an animal only eats producers, they must be a _______________
Omnivore
Herbivore
Carnivore
Autotroph
40
The most basic unit of matter
microbes
particles
atoms
molecules
