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Review Questions Answers
THE LIVING WORLD
Species
1)
a) same, they are both zebras
b) not the same
c) same
2)
a) 3 from the same genera (or genus): Pleurotus, Lepiota, Belotus
b) 6
3) d, b, f
Physical / Behavioral adaptations
1)
a) b
b) p
c) b
d) p
e) p
f) p
g) b
h) p
Cellular components visible under a microscope
1) provides energy to the cell
2) nucleus
3) cell wall - chloroplast - large vacuole. (animal has smaller ones)
4) true
5) chlorophyll
6) vacuole
7) cytoplasm
8) a) plant b) plant c) animal d) animal e) plant f) plant
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9)
Left side
Right side
Nuclear membrane
chloroplast
Nucleus
vacuole
cell membrane
cytoplasm
cell wall
Left side
Right side
cell membrane
cytoplasm
Nucleus
nucleus
Nuclear membrane
10) chloroplast
11) a) vacuole
12) b) cell wall
Photosynthesis
1) Oxygen and carbohydrates (glucose)
2) Water, carbon dioxide, sunlight
3) soil
4) potatoes, bread, pasta, rice, etc.
5) chlorophyll
6) fall
7) mitochondria
8) oxygen and carbohydrates (glucose)
9) Photosynthesis:
carbon dioxide + water + energy = carbohydrates + oxygen
Cellular respiration:
carbohydrates + oxygen = water + carbon dioxide + energy
Reproductive mechanisms in plants (the flower)
1) They attract insects
2) male sexual cell: pollen
female sexual cell: egg (or ovum)
3) the insects and birds carry pollen from one flower to another, which permits
pollination
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4) It is the female part of the flower. It is sticky so that pollen stays stuck to it.
Sexual and asexual reproduction
1) sexual
2) asexual
THE MATERIAL WORLD
1) solid, gases
2) a) acid b) base c) neutral d) acid e) base f) acid e) base
3) a) neutral b) acid
4) kg (kilogram), g (gram); scale (balance)
5) atoms are one kind of element: molecules are a combination of many atoms
6) oxygen: 16 g; nitrogen: 14 g; gold: 197 g; copper: 64 g
7) Yes. It is made up of two different kinds of atoms (hydrogen and oxygen)
8) a) Fe c) O d) Co
9) Chemical change: it is not reversible; a new product is created (carbon dioxide,
water, ashes); the nature changed
THE EARTH AND SPACE WORLD
Internal structure of the Earth
1) core, mantle, crust
2) mantle
3) under the continents
4) true
General characteristics of the atmosphere
1) troposphere, stratosphere, mesosphere, thermosphere
2) it protects us from ultraviolet rays coming from the Sun
3) troposphere
4) they are burnt up in the thermosphere
Orogenesis (mountain formation)
1) b) orogenesis
2) c) movement of tectonic plates
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3) erosion
4) d) hills
Renewable and non-renewable energy resources
1) non-renewable
2) renewable
3) a) non-renewable b) renewable c) renewable d) renewable e) non-renewable
f) renewable
4) - few regions where there is enough wind
- wind does not always blow
- wind turbines can be damaged by weather
- back-up energy sources must be available
- wind turbines’ high masts mar the landscape
- wind turbines can have negative health effects
- expensive
Cycles of day and night
1) Night: it is on the opposite side of the Earth from the Sun
2) 24 hours
Universal gravitation
1) mass of the objects and distance between them
2) False, the Moon is attracted to the Earth
3) The Sun
THE TECHNOLOGICAL WORLD
Simple machines
1) pulley: clothesline / inclined plane: handicap ramp / wheel and axle: bicycle /
lever: see-saw
2) They make it easier to lift objects or move them around
3)
4)
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Types of motion (movement) rotation-translation-helical
5) rotation
6) translation
7) helical
8) translation
9) rotation
10)
helical
Transformation of energy
12) wind
Raw
11) electrical → thermal
energy → kinetic (movement) → electrical
materials
13) wood from trees
14) sheep’s wool