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Year 7 Inter-classes Science Competition Flashcards | StudBud
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Year 7 Inter-classes Science Competition
Year 7 Inter-classes Science Competition
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PAP Spring 2015 Exam Review
Flashcards
45 cards
F
Practice quiz
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Host live
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Questions
45
Answers
1
Most dinosaurs were
Herbivores (plant-eaters)
Omnivores (eat both)
Carnivores (meat-eaters)
2
The male dancer is also a famous science presenter. What is his name?
Bill Nye
James Bond
Carl Sagan
Albert Einstein
3
Farmers and scientists use__________ to develop new varieties of plants
Natural selection
Variety
Hybrids
selective breeding
4
Oxygen, carbon, iodine, potassium and sodium are examples of
molecules
mixtures
elements
compounds
5
Earth would not have seasons if it –
revolved around the sun in the opposite direction
stopped rotating on its axis
no longer tilted on its axis
took an additional month to orbit the sun
6
A specie that comes from another ecosystem is called
Introduced
A successor
A competitor
An invasive Species
7
Which of the following are examples of human-caused environmental change?
all of the above
non-sustainable harvesting
wildlife hazards
deforestation
8
What separation technique that can be used to get pure metal from its ore?
chromatography
Froth flotation
filtration
Condensation
9
The phases of the moon are caused by —
The moon's revolution around Earth
Earth's rotation
Earth's revolution around the moon
Earth's tilt on its axis
10
Opposite of dilute is
dissolved
mixed
concentrated
solution
11
The female part of flowering plants is called
The uterus
The ovule
The stigma
The ovary
12
A collision between two pieces of continental crust at a converging boundary produces a
rift valley
mid-ocean ridge
deep-ocean trench
mountain range
13
A _____ is a living thing,such as a plant, that can make its own food.
parasite
producer
consumer
predator
14
What keeps Earth from flying outward into space from its present position?
The inward gravitational pull of the sun
Earth's tilt on its axis
None of the above
Earth's rotation on its axis
15
Three states of matter are
atoms, molecules and compounds
solid, liquid and gas
solid, liquid and air
solid, liquid and atoms
16
A chemical that kills plants is called
fertilizers
pesticide
pollutant
Herbicide
17
Which two organisms have a predator-prey relationship?
copepods & amphipods
shad & sturgeons
sturgeons & blue crabs
blue crabs & rangia clams
18
Which of the following describes the
most
fundamental cause of weather?
rain
uneven distribution of land and water on Earth's surface
clouds
uneven heating of Earth's surface by the Sun
19
What is formed when a solute dissolve in a solvent
froth
chemicals
solution
mixture
20
What term means that no more particles can be dissolved in the solution
Evaporation
concentration
condensation
saturation
21
which team is currently at the top of the AFL ladder?
Sydney Swans
Hawthorn
North Melbourne
Geelong Cats
22
The boundary between cold and warm air masses is called a--
storm
front
flood
climate
23
Which of the following is evidence in support of the theory of continental drift?
South American fossils are different from African fossils
There are no fossils in South America older than 200 mil yrs
Species in South and North America are closely related
Fossils in South America are similar to those in Africa
24
Name for the smallest part of matter
atom
mixture
molecule
Compound
25
The primary source of energy for the earth's atmosphere is:
erupting volcanoes
the sun
energy from within the earth
latent heat released during the formation ofhurricanes
26
What does the word dinosaur mean in its Greek root?
Giant Fish
Secret Dragon
Terrible Lizard
Ancient Warrior
27
What natural process can result in the formation of new land?
earthquakes
floods
landslides
volcanic eruptions
28
Heat that comes from the earth is called
solar energy
chemical energy
radioactivity
Geothermal energy
29
What determines the length of one full day (24hours) on Earth?
Earth's distance from the Sun
Earth's revolution
Earth's tilt on its axis
Earth's rotation
30
The application of science to criminal investigation is called
forensic science
CSI
Pseudoscience
biology
31
Which of the following is NOT a scientific discipline?
astronomy
astrology
physics
Chemistry
32
This scientist is famous for
Theory of electromagnetism
Theory of evolution
Developing three laws of motion
E=mc^2 and theory of relativity
33
Clown fish live in sea anemone and scare away other fish that eat the sea anemone.
parasitism
predator-prey
mutualism
commensalism
34
At which two positions of the moon will neap tides occur?
4 and 8
1 and 5
2 and 6
3 and 7
35
Which two types of organisms have a producer-consumer relationship in this African savanna?
hyenas and cheetahs
fungi and dung beetles
zebras and hyenas
trees and elephants
36
Which picture shows a waxing crescent?
A
C
B
D
37
Greenhouse effect refers to
ability of atmospheric gases to trapheat and warm the planet
ability of atmosphere to retain water vapor
ability of cloud to scatter electromagneticradiation
38
Biotic means
alive
not living
healthy
organic
39
A tide is a _________ rise and fall of sea level.
yearly
daily
monthly
40
The energy possessed by moving bodies is called
Heat
Kinetic energy
Mechanical energy
Potential energy
41
Particles in a gas are moving____ and are____
slowly, close together
quickly, far apart
quickly , close together
slowly, far apart
42
A food chain start with
a decomposer
A predator
a producer
a prey
43
Which is not an effect of the motions of the moon?
seasons on Earth
high and low tide
the lunar cycle
44
When did dinosaurs become extinct?
about 65 million years ago
about 20 000 years ago
about 20 million years ago
about 100 million years ago
45
These animals are able to share the same environment because —
the giraffes use the zebra for food
they have different niches
they compete with each other for food
they live in different ecosystems