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science cambridge checkpoint 8 test

Total questions: 90

Worksheet time: 1hrs 5mins

Name
Class
Date
1.

Carbohydrates are used by the body to

a)

make important chemicals such as enzymes and antibodies

b)

provide enrgy

c)

store energy

d)

make new cell membranes

2.

Fat is used by the body for which two of the following functions:

a)

make new cells

b)

make new cell membranes

c)

make important chemicals such as enzymes and antibodies

d)

store energy

3.

Which of the following are naturally occurring and can be obtained from plants and animals?

a)

Fats

b)

Carbohydrates

c)

Vitamins

d)

Minerals

4.

Which of the following are naturally occurring and can be obtained from soil and water?

a)

Fats

b)

Carbohydrates

c)

Vitamins

d)

Minerals

5.

Which nutrient helps to keep food moving easily through the alimentary canal?

a)

Fats

b)

Protein

c)

Carbohydrates

d)

Fibre

e)

Vitamins and minerals

6.

Which "nutrient" typically makes up 60-70% of the body?

a)

Fats

b)

Protein

c)

Carbohydrates

d)

Fibre

e)

Water

7.

Foods which are good sources of protein include:

a)

fish, meat, beans, eggs and dairy

b)

pasta, bread, grains, potatoes

c)

fruits, vegetables, whole seeds

d)

cheese, oil, butter, meat

8.

Foods which are good sources of carbohydrates include:

a)

fish, meat, beans, eggs and dairy

b)

pasta, bread, grains, potatoes

c)

fruits, vegetables, whole seeds

d)

cheese, oil, butter, meat

9.

Foods which are good sources of fat include:

a)

fish, meat, beans, eggs and dairy

b)

pasta, bread, grains, potatoes

c)

fruits, vegetables, whole seeds

d)

cheese, oil, butter, meat

10.

Foods which are good sources of vitamins and minerals include:

a)

fish, meat, beans, eggs and dairy

b)

pasta, bread, grains, potatoes

c)

fruits, vegetables, whole seeds

d)

cheese, oil, butter, meat

11.

To test whether or not a food contains starch:

a)

test with iodine solution. If the iodine turns from blue/black to yellow/brown, it contains starch.

b)

test with iodine solution. If the iodine turns from yellow/brown to blue/black, it contains starch.

c)

test with Benedict's solution. If the bluish mixture changes to red upon heating, it contains starch

d)

test with Benedict's solution. If the reddish/brown mixture changes to blue upon heating, it contains starch

12.

To test whether or not a food contains sugar:

a)

test with iodine solution. If the iodine turns from blue/black to yellow/brown, it contains sugar.

b)

test with iodine solution. If the iodine turns from yellow/brown to blue/black, it contains sugar.

c)

test with Benedict's solution. If the bluish mixture changes to red upon heating, it contains sugar

d)

test with Benedict's solution. If the reddish/brown mixture changes to blue upon heating, it contains sugar

13.

Having a "balanced diet" means a diet that:

a)

has equal amounts of carbohydrates, protein, fats and sugars, fruits and vegetables

b)

provides all the different kinds of nutrients, along with the right amount of energy your body uses each day

c)

takes in an equal amount of food as water consumed

d)

eating as much fruits and vegetables as Al Baik chicken and fries

14.

What happens if you take in too many vitamins in your diet?

a)

you develop enhanced immunity to disease

b)

your body excretes the excess

c)

your skin slowly turns an orange colour

d)

your eyesight improves

15.

Cells can get energy from which three of the following nutrients?

a)

carbohydrates

b)

protein

c)

fats

d)

vitamins and minerals

16.

What happens if you take in too much energy-giving nutrients in your diet?

a)

you develop an energy overload

b)

your body excretes the excess

c)

your body turns the extra nutrients to fat

d)

muscle formation increases

17.

The process by which food reaches blood cells by moving through the walls of the alimentary canal is:

a)

absorption

b)

diffusion

c)

digestion

d)

ingestion

18.

The process in which large molecules of food is broken down into smaller ones, so they can be absorbed, is:

a)

absorption

b)

diffusion

c)

digestion

d)

ingestion

19.

The large molecules that need to be broken down into smaller molecules, so that nutrients can be digested are

a)

proteins

b)

fats

c)

fibre

d)

starch

e)

sugar

20.

what is the difference between starch and sugar?

a)

Sugar molecules are complex starch molecules (many starch molecules joined together, making it difficult to digest)

b)

Starch molecules are complex sugar molecules (many sugar molecules joined together, making it difficult to digest)

c)

Sugar molecules are "simple starches", (small molecules that can be digested)

d)

Starch molecules are "simple sugars", (small molecules that can be digested)

21.

What is the main function of enzymes found in both saliva and the small intestine?

a)

to help kill bacteria

b)

to move food all the way through the alimentary canal, from mouth to anus

c)

to break down large molecules into small molecules so that they can pass through the walls of the alimentary canal

d)

to break down large molecules into small molecules so that they can pass through the oesophagus

22.

The order that food passes through, in the alimentary canal is:

a)

mouth - stomach - oesophagus - small intestine - large intestine - anus

b)

mouth - oesophagus - stomach - large intestine - small intestine - anus

c)

mouth - stomach - small intestine - large intestine - oesophagus - anus

d)

mouth - oesophagus - stomach - small intestine - large intestine - anus

23.

The function of the mouth is to

a)

break down food molecules into smaller molecules using teeth, and to kill bacteria using enzymes in saliva

b)

break down food molecules into smaller molecules using teeth only.

c)

break down food molecules into smaller molecules using both teeth, and break down starch into sugar using saliva

d)

allow us to extract the maximum taste of food before they pass through the digestive system

24.

Which part of the digestive system uses hydrochloric acid to kill micro-organisms in food, and gastric juices to break down protein?

a)

mouth

b)

stomach

c)

small intestine

d)

large intestine

e)

liver

25.

Which parts of the digestive system absorb water?

a)

stomach

b)

small intestine

c)

large intestine

d)

liver

e)

pancreas

26.

What is the function of the liver?

a)

makes bile, (which is stored in the gall bladder), but flows into the small intestine to help with digesting fats

b)

makes juices (such as insulin), that flow into the small intestine to help digest protein, starch and fat.

c)

has no known useful function

d)

makes juices such as hydrochloric acid to kill micro-organisms

27.

What is the function of the pancreas?

a)

makes bile, (which is stored in the gall bladder), but flows into the small intestine to help with digesting fats

b)

makes juices, that flow into the small intestine to help digest protein, starch and fat.

c)

has no known useful function

d)

makes juices such as hydrochloric acid to kill micro-organisms

28.

What is the function of the appendix?

a)

makes bile, (which is stored in the gall bladder), but flows into the small intestine to help with digesting fats

b)

makes juices (such as insulin), that flow into the small intestine to help digest protein, starch and fat.

c)

has no known useful function

d)

makes juices such as hydrochloric acid to kill micro-organisms

29.

Food does not pass through which of the following organs, in the digestive system?

a)

stomach

b)

liver

c)

large intestine

d)

pancreas

e)

appendix

30.

Digestion happens in the

a)

mouth

b)

stomach

c)

small intestine

d)

large intestine

31.

Biomass is:

a)

dead and decaying biological matter

b)

a unit of measure that gives the mass of dead cells

c)

living biological cells

d)

a unit of measure that gives the mass of living cells

32.

You are carrying out an experiment to see if plants need light. You do this by testing two samples of seeds, one in the light, and one in the dark, and seeing if they germinate. What variable should stay the same throughout the experiment?

a)

amount of light

b)

amount of water

c)

number of seeds

d)

temperature

33.

Leaves are green and roots are white because

a)

leaves contain chlorophyll, but roots don't

b)

roots contain chlorophyll, but leaves don't

c)

leaves absorb green light but roots do not

d)

roots absorb green light, but leaves do not

34.

Select all that apply:

A leaf is adapted for photosynthesis and plant growth because

a)

their cells contain chlorophyll

b)

it is very thin, so light can reach all the cells inside them

c)

veins carry water to the cells

d)

it has a stalk that attaches the leaf to the plant

e)

water can enter the leaf through stomata

35.

The function of the cuticle (waxy layer) on the leaf is to

a)

keep it looking shiny

b)

stop the leaf from turning brown

c)

keep the upper epidermis together

d)

stop the leaf cells from drying out

36.

The layer of cells in a leaf where most of the photosynthesis occurs is the

a)

waxy layer

b)

upper epidermis

c)

palisade layer

d)

spongy layer

e)

lower epidermis

37.

The function of the stomata in leaves is to

a)

allow water to enter the leaf

b)

create spaces for guard cells

c)

let carbon dioxide get into the leaf

d)

let oxygen get into the leaf

38.

stoma are

a)

cells that can be found on the upper epidermis

b)

cells that can be found on the lower epidermis

c)

tiny holes found on the upper epidermis

d)

tiny holes found on the lower epidermis

39.

When a leaf taken from a plant is put into water that is warmer than the air,

a)

nothing happens

b)

bubbles appear on the top surface

c)

bubbles appear on the lower surface

d)

the leaf gets bigger

40.

Select all that apply:

Which of the following affects the rate of photosynthesis?

a)

amount of water given to a plant

b)

the intensity of the light on the plant

c)

amount of carbon dioxide given to a plant

d)

colour of light the plant is exposed to

41.

When investigating the rate of photosynthesis in plants, the main reason water-plants are used is because

a)

plants need water

b)

we can measure the rate by measuring the change in temperature of the water

c)

its easier to keep the temperature of the plant constant

d)

we can measure the rate by counting bubbles

42.

Select all the functions that the root of a plant has:

a)

food storage for the plant

b)

keeps the plant upright

c)

anchors the plant to the ground

d)

keeps the plant alive in difficult conditions, when the above-ground parts die

e)

absorb water and minerals from the soil

43.

Root hairs cells are specialised cells for plant growth because

a)

they have a large surface area for absorbing water and nutrients

b)

they have a large surface area to allow for greater photosynthesis

c)

they keep growing until they reach water and nutrients

d)

they keep growing until they reach sunlight for photosynthesis

44.

Roots always grow

a)

upwards

b)

downwards

c)

in a direction dependant on how the seed was oriented

d)

no preferred direction

45.

Water and minerals are transported from the roots to the leaves through the

a)

phloem vessels

b)

stalk

c)

xylem vessels

d)

subway system

e)

stomata

46.

Select all that apply: xylem vessels

a)

are very tiny, and usually bunched together

b)

have very hard and strong walls that help keep a plant upright

c)

are always found in the middle of plant cells

d)

make up the wood in a tree trunk

e)

are located in the outer layer only of plants

47.

Select all that apply:

The xylem vessels in a leaf can be found

a)

towards the upper layer of the leaf

b)

towards the lower layer of the leaf

c)

inside the veins of the leaf

d)

in both the upper and lower epidermis of the leaf

48.

What does the word “Atom” mean?

a)

Cannot be divided

b)

The smallest thing

c)

An element

d)

A particle

49.

The air is a _________.

a)

element

b)

mixture

c)

compound

d)

energy

50.
These contain only one kind of atom. 
a)
element 
b)
compound 
c)
mixture 
d)
water 
51.

Water is a ___________.

a)

element

b)

mixture

c)

compound

52.
Elements can be broken down into simpler substances. 
a)
false 
b)
true 
c)
sometimes 
53.
A molecule can be made of the same kind of atoms. 
a)
true
b)
false 
c)
Say What??!!!
d)
Dude!! Sweet!!
54.

Carbon is a(n) ______

a)

compound

b)

element

c)

mixture

55.

Which of the following is true of oxygen?

a)

Oxygen is an element because its most basic unit is a single type of atom

b)

Oxygen is a compound because its most basic unit is a single type of atom.

c)

Oxygen is a mixture because its most basic unit contains more than one particle.

d)

Oxygen is a compound because its most basic unit contains more than one type of particle.

56.

Which statement identifies why oxygen is classified as a pure substance and air is classified as a mixture?

a)

Oxygen is more reactive than air.

b)

Oxygen has a higher density than air.

c)

Oxygen goes under a phase change, whereas air is always a gas.

d)

Oxygen contains only one substance, but air contains several substances.

57.

When electricity passes through water, hydrogen and oxygen are produced. Which table correctly labels the compounds and elements involved in the process?

a)

Water-->Compound

Hydrogen-->Compound

Oxygen--->Element

b)

Water-->Compound

Hydrogen--->Element

Oxygen--->Compound

c)

Water--->Compound

Hydrogen--->Element

Oxygen--->Element

58.

This image is a model of...

a)

an element

b)

a compound

c)

a homogenous mixture

d)

a heterogeneous mixture

59.

This picture is a model of...

a)

an element

b)

a compound

c)

a homogenious mixture

d)

a heterogeneous mixture.

60.
Which of the following represents an element?
a)
H2O
b)
H2
c)
NaCl
d)
CaCO3
61.
Which of the following is not a compound?
a)
HCl
b)
Cl
c)
NaCl
d)
CO2
62.

How many elements are represented in the compound?

Na2CO3

a)

1

b)

2

c)

3

d)

4

63.
The name for the table that organises all elements according to it's atomic number is called the:
a)
The Table
b)
The Periodic Table of Elements
c)
The Chemical Table
d)
The Atomic Table
64.
Name the following ionic compound: MgSO4
a)
magnesium sulfoxide
b)
magnesium sulfide
c)
magnesium sulfate
d)
magnesium oxide
65.
name the following ionic compound: NaF
a)
nitrogen fluorine
b)
sodium fluoride
c)
nitrogen fluoride
d)
sodium fluorine
66.

Rows on the Periodic Table are called _____ while columns are called _____.

a)

groups, families

b)

groups, periods

c)

periods, groups

d)

families, groups

67.

What is a compound?

a)

The smallest unit of all matter.

b)

Two or more atoms bonded together.

c)

A substance containing only one type of atom.

d)

A substance containing different types of bonded atoms.

68.
Name MgO
a)
Magnesium Oxygen
b)
Magnesium Oxide
c)
Magnesium Monoxide
d)
Magnesium Dioxide
69.

P is the symbol for

a)

Potassium

b)

Phosphorous

c)

Plutonium

d)

Plasticine

70.
At higher temperatures
a)
particles in an object have less energy
b)
particles in an object move faster
c)
a gas contracts
71.
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
72.
Define a liquid.
a)
Indefinite shape, indefinite volume
b)
Definite shape, definite volume
c)
Found in stars
d)
Definite volume, indefinite shape
73.
Particles (molecules) in a ______________________ have more energy than the other states of matter.
a)
gas
b)
solid
c)
liquid
74.
Particles of a liquid
a)
are tightly packed together and stay in a fixed position.
b)
have no viscosity.
c)
decrease in volume with increasing temperature.
d)
are free to move around one another but still touch.
75.
What term describes a solid changing to a gas?
a)
Deposition
b)
Sublimation
c)
Evaporation
d)
Freezing
76.
The speed of the molecules determines the _____.
a)
volume
b)
density
c)
pressure
d)
temperature
77.
The slower the particles in a substance move,
a)
the colder it is.
b)
the warmer it is.
c)
the more energy it has.
d)
the less energy it has.
78.
Thermal energy is...
a)
heat energy.
b)
the energy of motion
c)
energy of nuclear processes.
d)
an indication of physical change.
79.
A chemical change
a)
doesn't really change much.
b)
creates a new substance
c)
is a change in the state of matter
80.
A physical change is...
a)
a change that doesn't change the identity
b)
a change that makes something new.
c)
a chemical reaction
81.
If the tops were removed from the cylinders, the following would happen:
a)
The solid would fly out of the container
b)
The liquid would fly out of the container.
c)
The gas would fly out of the container.
d)
They ALL would fly out of the container.
82.
In this substance, the _____ has the greatest temperature oC.
a)
solid
b)
liquid
c)
gas
d)
Mr. Considine
83.
The freezing point of water in oCelsius and oFahrenheit is:
a)
100oC or 212oF
b)
0oC or 32oF
c)
WRONG
d)
WRONG
84.
This image shows:
a)
Molecules in solid have the greatest amount of energy.
b)
Molecules in a liquid have the greatest amount of energy.
c)
Molecules in a gas have the greatest amount of energy.
d)
They have equal amounts of energy.
85.

There is very little space between the molecules of a liquid. There is a lot of space between the molecules of a gas.

a)

True

b)

False

c)

WRONG

d)

Nope

86.
The molecules in which state of matter spread out until they fill the container no matter how big this container is? 
a)
solid
b)
liquid
c)
gas
d)
WRONG
87.
Matter in a ...... has a ...... volume and ...... shape.
a)
gas ... no definite ... no definite
b)
gas ... definite ... no definite
c)
solid ... definite ... no definite
d)
solid ... no definite ... definite
88.
Rank these in order from least dense to most dense.
a)
Solid, Liquid, Gas
b)
Liquid, Gas, Solid
c)
Gas, Solid, Liquid
d)
Gas, Liquid, Solid
89.
The boiling point of water in oCelsius and oFahrenheit is:
a)
0oC or 32oF
b)
100oC or 212oF
c)
WRONG
d)
WRONG
90.

Over 2000 years ago a Greek philosopher called (a)   suggested that everything was made up of tiny pieces.

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