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WorksheetsYear 7 Science Revision
Total questions: 74
Worksheet time: 1hrs 12mins
Name
Class
Date
1.
Which organ system is responsible for movement?
a)
Respiratory
b)
Circulatory
c)
Musclular
d)
Digestive
2.
In which cell would you find chloroplasts?
a)
Animal cell
b)
Red blood cell
c)
Egg cell
d)
Plant cell
3.
What would you use this piece of equipment for?
a)
Evaporating
b)
Condensing
c)
Filtering
d)
Chromotography
4.
Complete the equation:
Magnesium + Oxygen -->
Magnesium + Oxygen -->
a)
Magnesium oxide
b)
Oxygen Magnesium
c)
Magnesium Oxygen
d)
Magnesium hydroxide
5.
What type of cell is this?
a)
Egg cell
b)
Pollen
c)
Sperm
d)
Root hair cell
6.
What is this graph showing?
a)
Temperature decreases over time
b)
Temperature increases over time
c)
Time increases with temperature
d)
Temperature increases until 6 minutes then levels off
7.
Directs all cell activities "Brain or Control Center of cell"
a)
Lysosomes
b)
Nucleus
c)
ribosomes
d)
Mitochondria
8.
Controls what passes in and out of the nucleus
a)
Nuclear Membrane
b)
Vacuole
c)
Ribosome
d)
Lysosome
9.
Jelly-like substance found inside cell that acts as a medium for chemical reactions within the cell
a)
Nuclear Membrane
b)
Golgi Body
c)
Cytoplasm
d)
Ribosome
10.
"powerhouse of the cell" breaks down sugar molecules to release energy, site of cellular respiration, double membrane, self-replicating, contains own DNA, cristae
a)
Mitochondria
b)
Chloroplast
c)
Cell Wall
d)
Vesicle
11.
"Storage tanks" Can hold food, water or waste for the cell
a)
Ribosomes
b)
Vacuole
c)
Chloroplast
d)
Nucleolus
12.
A special plastid that contains chlorophyll a pigment that captures the sun's energy to produce glucose in a process called photosynthesis
a)
Chloroplast
b)
Cell Membrane
c)
Cell Wall
d)
Nuclear Membrane
13.
What cell part is NOT found in all cells?
a)
Cell Wall
b)
Cell Membrane
c)
Cytoplasm
d)
Genetic Material
14.
Plants and animal cells both have a nucleus.
a)
True
b)
False
15.
plants don't have chloroplasts
a)
true
b)
false
16.
animals have chloroplasts
a)
false
b)
true
17.
When puberty takes place in girls, which one of the following does not happen?
a)
Womb grows bigger
b)
Shoulders broaden
c)
Eggs start producing
d)
Breasts enlarge
18.
The eggs are produced in
a)
the ovaries.
b)
the womb
c)
the fallopian tube
d)
the cervix
19.
The term "uterus" is another name for ?
a)
the womb
b)
ovary
c)
placenta
d)
vagina
20.
Where in the female reproductive system will you find thousands of eggs?
a)
Uterus
b)
Ovaries
c)
Fallopian tube
d)
Vagina
21.
Where does fertilization occur?
a)
The uterus
b)
The fallopian tube
c)
The ovary
d)
The vaginal cannal
22.
What is another name for a sex cell?
a)
Gamete
b)
Gene
c)
DNA
d)
French Bulldog
23.
Which of the following statements is true about the process shown in the picture?
a)
Many sperms will enter the egg.
b)
Only 1 sperm will fertilise the egg.
c)
Many sperms will fertilised many eggs.
d)
None of the sperms will enter the eggs.
24.
Tigers, Jellyfish, Gorillas and Sponges are all part of kingdom _______.
a)
Animalia
b)
Plantae
c)
Fungi
d)
Bacteria
25.
You would find mushrooms in which kingdom?
a)
Plantae
b)
Protists
c)
Fungi
d)
Animalia
26.
Which best describes what a food chain shows you?
a)
Energy flow through an ecosystem
b)
Food flowing through an ecosystem
c)
Consumers going into other consumers
d)
Who eats who
27.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
28.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
29.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
30.
What are the organisms that break down dead stuff?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Organisms
31.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff
32.
What's the role of consumers in a food chain?
a)
Use sunlight to make food
b)
Eat other species and keep them from overpopulating
c)
Break down dead stuff
d)
Add nutrients to the soil
33.
Which of the following conclusions can be drawn from this graph?
a)
The optimum pH of the enzyme is 6.6.
b)
The optimum pH of the enzyme is 5.8
c)
The enzyme’s activity increases as pH increases 5.0 to 9.0
d)
The enzyme’s activity is greater around pH of 8.0 .
34.
Can Solids be compressed?
a)
No
b)
Yes
c)
Sometimes (it depends what it's made of)
d)
Generally no
35.
In a solid, the particles
a)
vibrate in place
b)
slide past one another
c)
overcome the strong attraction
36.
A gas
a)
has a definite shape but no definite volume
b)
has a definite volume but no definite shape
c)
has fast-moving particles
37.
Anything that you can change in an experiment that MIGHT affect the outcome.
a)
variable
b)
standard
c)
prediction
d)
mass
38.
Mr. S. wants to find the best way to get more students to attend extra help review. Normally, he does not give extra credit for attending extra help. On one quiz, he decides to give extra credit to students who attend extra help. Identify the dependent variable.
a)
extra points for attending extra help
b)
extra points for attending extra help
c)
number of students attending extra help
d)
student scores
39.
The summary at the end of an experiment that explains the results.
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
40.
BooBoo believes that his plants grow so well because he is always playing music in his room. What is a question he might ask to test this?
a)
Does music have an affect on plant growth?
b)
Which music groups like plants?
c)
Does plant growth make music sound better?
d)
Why do dying plants hate music?
41.
Requires two parents
a)
sexual
b)
asexual
42.
The union of egg cell and sperm
a)
fertilization
b)
sperm
c)
fallopian tubes
43.
Male animals produce reproductive cells known as _____.
a)
palisade
b)
ovum
c)
sperm
d)
egg
44.
What causes puberty to start?
a)
Hormones
b)
Gender
c)
Genetics
d)
Body Size
45.
Looking at the picture below what is the female sex organ that is referred to as the birth canal
a)
Ovary
b)
Vagina
c)
Cervix
d)
Uterus
46.
Sperm/seminal fluid and urine pass through the same opening to exit the body in a male?
a)
True
b)
False
47.
a)
uterine lining
b)
endometrium
c)
uterus
d)
myometrium
48.
a)
ovary
b)
cervix
c)
vagina
d)
uterus
49.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will get brighter.
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
50.
The picture shows an electrical circuit. This circuit is a series circuit because:
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current is divided between the three light bulbs.
51.
What kind of circuit is this?
a)
series
b)
parallel
52.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will get brighter.
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
53.
The physical separation of mixtures into individual components is..
a)
chromatography
b)
opacity
c)
latent
d)
trace evidence
54.
Two or more substances that are mixed together but not chemically combined is a ___
a)
compound
b)
mixture
c)
keratin
d)
chromatography
55.
Ink can be separated by a method of -----------------------------------------------
a)
distillation
b)
filtration
c)
chromatography
d)
sedimentation
56.
chromatography separates the mixture of dyes on the basis of their ----------------------------
a)
density
b)
solubility
c)
gravity
d)
boiling point
57.
On the chromatogram given -------------- is mixture.
a)
red
b)
orange
c)
green
d)
black
58.
The diagram below shows a chromatogram obtained when a sample X was analysed together with four other known dyes P, Q, R and S. Dye Q was known to cause cancer. Which of the following dye(s) is/are safe for use?
a)
P only
b)
S only
c)
P and S
d)
P and X
59.
To separate noodles from water what method should you use?
a)
filtration with a strainer
b)
boiling while it is cooking
c)
magnet for the noodles
60.
Which mixture separation method uses a net?
a)
filtration
b)
magnet
c)
boiling/evaporation
d)
sorting physically
61.
Which mixture separation method would use to separate sugar from water?
a)
filtration
b)
magnet
c)
boiling/evaporation
d)
sorting physically
62.
What happens when you mix dirt and water?
a)
The dirt will float on top of the water.
b)
The dirt will settle to the bottom.
c)
The dirt will dissolve.
d)
The water will begin to bubble.
63.
In the Rainbow Fizz experiment, Sodium Hydrogen Carbonate
(NaHCO3) was used as the alkali. This can be found in many households under what common name?
a)
Sugar
b)
Salt
c)
Baking Powder
d)
Sodium Bicarbonate
64.
The pH scale is a range from:
a)
1-7
b)
0-14
c)
1-14
d)
1-20
65.
A(n) ______ is a substance with a pH less than 7
a)
Acid
b)
Alkaline
c)
Base
d)
Buffer
66.
A(n) _______ is a substance with a pH greater than 7.
a)
Base
b)
Acid
c)
Buffer
d)
Water
67.
Bleach is a strong base, what is the pH level of bleach?
a)
13
b)
14
c)
1
d)
2
68.
According to the pH range which substance is more acidic than lemon juice
a)
Hydrochloric acid
b)
cabbage
c)
milk
69.
Forces are a...
a)
Push, Pull or Twist
b)
Push and Pull
c)
Push
d)
Moving object
70.
The standard international unit for force is...
a)
Mass
b)
Kg
c)
SI
d)
N
71.
Which is an example of a contact force?
a)
Gravity
b)
Magnetism
c)
Friction
d)
Kinetic Energy
72.
A car is travelling at a constant speed. Which of the following statements is true?
a)
The forces acting on the car are unbalanced
b)
The forces acting on the car are balanced
c)
The forces acting on the car are a causing it to change shape
d)
The direction of the net force is forward
73.
A book sits on a table. Which of the following sentences is true?
a)
The forces acting on the book are balanced
b)
The forces acting on the book are unbalanced
c)
The only force acting on the book is gravity
d)
The forces acting on the book are approximately 3N
74.
Which of the following is true about the image shown?
a)
The net force is 6N to the right
b)
The net force is 3N to the right
c)
The net force is 6N to the left
d)
The net force is 3N to the left
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