BARU
Ukuran huruf
Lembar kerjaYear 7 Science Quiz
Total soal: 42
Worksheet time: 14mins
Which of these is not an organ System?
Digestive
Respiratory
Nervous
Movement
This part of the Respiratory System
Heart
Liver
Lungs
Large intestine
The nervous system is made up of
heart,brain,nerves
brain, nerves, spinal cord
brain, blood vessels, nerves
muscles, nerves,brain
Which of these is a joint?
Ball and socket
sternum
cranium
Pelvic Girdle
The fluid found at a joint is called
synovial fluid
bone fluid
femur fluid
joint fluid
Which of these is not a specialised cell
muscle cell
Red blood cell
Root hair cell
None of the above
A cell has a nucleus, cell wall, cell membrane, cytoplasm and many chloroplasts. It is a
leaf cell
root hair cell
white blood cell
sperm cell
When two organisms breed together to form fertile offspring. They belong to the same
group
class
species
genus
A spider belongs to which group?
insect
mollusc
mammal
arachnid
Who was the scientist that invented the process of Pasteurization
Lou Pasteur
Luke Pasteur
Lukeman Pasteur
Louis Pasteur
Who was the scientist that invented the process of Pasteurization
Lou Pasteur
Luke Pasteur
Lukeman Pasteur
Louis Pasteur
One of the essential minerals in the human body is salt. How much salt (NaCl) is in the average adult human body?
1 kilogram
500 grams·
250 grams
practically none
If you fill a glass to the brim with ice water and the ice melts, what will happen?
· The glass will over flow as the ice turns to water.
The level of water in the glass will remain unchanged as the ice melts
· The water level will drop slightly as the ice melts.
· I'll never find out because I'll drink the water or walk away before anything happens.
The symbol Sb stands for stibnum or stibnite. What is the modern name of this element?
Arsenic
Antimony
Samariam
Seaburgium
Water-based liquids can be described as acidic, neutral, or basic, with respect to pH. Which of these describes milk?
slightly acidic
strong acid
Neutral
slightly basic
Milk does not have a PH
You can't live without water! What is its chemical formula?
H2
O2
H2O
H2O2
Who is credited with the invention of the modern periodic table?
Nobel
Lavoisier
· Mendel
· Mendeleev
Which of these elements is a nonmetal?
Sulfur
Manganese
Aluminium
Beryllium
Organic chemistry is the study of the compounds that make up living organisms. All organic molecules contain:
Carbon only
Carbon and nitrogen
Carbon and Hydrogen
Carbon Hydrogen and Oxygen
The symbol Ag stands for which element?
Gallium
Magnesium
Gold
Silver
Three of the most common states of matter are solids, liquids, and gases. A liquid has:
a defined volume, but not a defined shape
a definite shape, but no defined volume
a definite volume and shape
no defined volume or shape
You can't live without iron. Where in the body is most of the iron located?
your brain
your skin
your bones
your blood
A drop of food coloring spreading out in a cup of water is an example of which transport process?
Diffusion
Effusion
Vapor Pressure
Osmosis
In a solution of saltwater (a saline solution), salt is the:
Solute
Sol
Solvent
Colloid
All of the following elements are liquids around room temperature except which one?
Gallium
Mercury
Bromine
Magnesium
Three of the most common states of matter are solids, liquids, and gases. A liquid has:
a defined volume, but not a defined shape
a definite shape, but no defined volume
a definite volume and shape
no defined volume or shape
Which most likely provides evidence of global warming?
decreased fish stocks of the Atlantic Ocean
increased drought in parts of Africa
increased ice sheet area at the South Pole
thinner growth rings in trees in Northern Europe
A suitable material for a match head can be made from a mixture of carbon, sulphur and potassium chlorate. Which best explains the role of the potassium chlorate?
burns exothermically with oxygen from the air
produces oxygen to burn the sulphur(
absorbs poisonous gases formed in the combustion reaction
acts a catalyst to trigger the reaction
Which is used to treat soil which is too alkaline
sand
lime
peat
marble
Which of the following is a gas emitted from factories and power stations that causes acid rain?
Sulphur dioxide
nitrogen
hydrogen
carbon monoxide
Which is believed to be the current main cause of the so-called 'Greenhouse Effect'?
increased volcanic activity
burning fossil fuels
reduction of the ozone layer
increase in cloud cover above the Earth
Which building material is least likely to be rapidly eroded by acid rain
limestone
marble
slate
sandstone
How long is it likely to take for light from the next nearest star after the Sun to reach your eyes?
8.5 minutes
1.3 seconds
2/10000th of a second
4.3 years
Which word best matches the Sun?
galaxy
solar system
planet
Collection of stars
Artificial satellites are usful objects which can be put up in space to orbit the Earth. Which statement is TRUE about the use of artificial satellites?
they can carry a telescope to study space beyond the solar system
they cannot monitor most of the Earth's weather systems
they cannot be put in orbit around other planets to study their surface
they can be used to find water sources deep underground
You are given the following masses and volumes for various blocks of materials. From them choose which one has a density of 1.5 g/cm3?
material X: mass = 8 g, volume = 16 cm3
material Z: mass =16 g, volume = 8 cm3
material W: mass = 8 g, volume = 8 cm3
material Y: mass = 12 g, volume = 8 cm3
Which of the following are units of density?
centimetre cubed
kilogram
grams per centimetre cubed
newton
Which of the following are units of density?
centimetre cubed
kilogram
grams per centimetre cubed
newton
Which of the following is the SI unit of mass?
kilogram
grams per centimetre cubed
centimetre cubed
newton
Which of the following are units of speed?
newton
kilogram
metres per second
centimetre cubed
. Which of the following is a 'force'?
electricity
light
kinetic
friction
Organic chemistry is the study of the compounds that make up living organisms. All organic molecules contain:
Carbon only
Carbon and nitrogen
Carbon and Hydrogen
Carbon Hydrogen and Oxygen
