Ultimate Science Quiz (science quiz for yearlies 3-12)

200 questions, 18 seconds per question.
blood types do not appear as they will (probably) not be tested
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you are legally required to say polonium is a cool element
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svalbardsstrand
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Last updated: November 3, 2024
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First submittedNovember 1, 2024
Times taken29
Average score19.5%
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Hint
Answer
Kinetic energy is energy of
movement
Energy using the flow of electrons is
electrical
Electrons are _____ charged
negatively/negative
The sun uses nuclear ______ to stay alive
fusion
Nuclear bombs use nuclear ______
fission
Heat transfer between solids
conduction
Heat transfer between liquids and gases
convection
Which type of solid are best at conducting?
metals
Heat transfer via infared rays
radiation
Formula for kinetic energy (write squared as ^2)
1/2mv^2
Formula for potential gravitational energy (write squared as ^2)
mgh
Sound energy is a type of _____ energy
kinetic
Conduction, convection and radiation all fall under ___ energy
thermal
Energy can be neither _____ nor destroyed
created
Energy is measured in:
Joules
Forces are measured in:
Newtons
Voltmeters measure:
Volts
Currents are measured by:
Ammeters
Rate of energy transfer is measured in:
Watts
Electric resistance is measured in
Ohms
6CO2 + 6H2O + light → C6H12O6 + 6O2 is?
Photosynthesis
What does C6H12O6 represent?
glucose
The transfer of liquids and gases from high to low concentration is called:
Diffusion
____ is when two liquids like water of different concentrations separated by a semipermeable (only allows certain things through) attempt to equalise the concentrations of both solutions.
osmosis
This causes water (molecules) to move ______.
up/upwards
Xylem carries dissolved solutes and ____.
Water
Used for transporting glucose and amino acids
phloem
The xylem carries things in ___ direction/s (1, 2) (you might as well guess)
1/one
The phloem carries things in ___ direction/s
2/two
Which way does the xylem go?
up
The outside of the ____ is dead, and made of a wood-like material.
xylem
The outside of the ____ is alive, and needs to be supported.
Phloem
Photosynthesis is done by which part of the cell?
chloroplasts
These cells contain _____ which actually does the photosynthesising.
chlorophyll
What is the anther held up by?
filament
The ovary protects the ___
ovule
Male sex cells are produced by the __
anther
Female sex cells are produced by the __
ovule
Xylem and phloem are grouped together by the ____ ____.
vascular bundles
Cambium cells can transform into ___ and ____ cells.
xylem, phloem
Xylem and phloem are separated by the ____.
cambium
Flaccid leaves ____
droop/drop/hang
Turgid leaves stay ____
firm/upright
The end of the stem is called the ____
receptacle
The ____ protect the petals.
sepal
The transfer of pollen from the male anther to the female stigma is called ___
pollination
Cross pollination requires ___ plants.
two
Self pollination is transfer of pollen from stamen to ____ of the same plant.
pistils
Sexual reproduction increases genetic ____
diversity/difference/variety
Cutting is a form of ____ reproduction
asexual
Stems that grow horizontally ABOVE the ground
runner
Stems that grow horizontally BELOW the ground
rhizome
Plants use ___, scent and nectar to try and attract pollinators.
color/colour
The parent in sexual reproduction turns x 2ns into two 2ns. What is 'x'?
1/a letter
Male sex cells (in plants) are:
pollen
Female sex cells are:
eggs
Sex cells in general are called:
gametes
There are two types of digestion: mechanical and _____
chemical
What is the acid in the stomach?
HCl/Hydrochloric acid
Teeth aid in ____ digestion
mechanical
The flap in your mouth that prevents food going straight down is called the
epiglottis
Saliva converts carbohydrates and starches into
sugar/glucose
What makes food move down in the oesophagus?
Peristalsis
Concentration of Hydrogen ions compared to pure water is called
pH
Finger-like objects in the small intestine to increase surface area (and thus, absorption of nutrients)
villi
Even smaller finger-like objects to increase surface area
microvilli
The large intestine's job is to ____ what the small intestine didn't
absorb
The GI (gastrointestinal) tract is the path in which ___ travels
food
The liver, gall bladder and pancreas are all ____ organs.
accessory
The liver produces ___
bile
The pancreas create pancreatic juices, which are digestive ____
enzymes
The circulatory system contains two main parts: a network of tubes and the ____
heart
Blood is pumped away from the heart via
arteries
Blood is pumped to the heart via
veins
Extremely small veins are called;
venules
The veins and arteries are connected via the
capillaries
Deoxygenated blood enters the heart via the
vena cava
The atrium at the ___ of the heart (funny latin way of remembering this lol)
top
The first time the blood leaves the heart, the blood is ______.
deoxygenated
Where does the blood go to after it leaves the heart the first time?
lungs
This is done by the ____ ____.
pulmonary artery
The lungs ____ the blood.
oxygenate
The right side of the heart contains _____ blood
deoxygenated
Plasma makes up __% of the blood (round to nearest 10 or 1 are both acceptable)
50/55/55.5/56/60
Red blood cells make up % of the blood (round to nearest 10 or 1 are both acceptable)
40/44/45/50
The remaining 0.5% covers the ____ and the white blood cells.
platelets
Red blood cells contain ____, which transports oxygen.
haemoglobin
The chemical formula for haemoglobin is: (troll question, type 1 to skip)
C2952 H4464N3248O812S8Fe4/1
Which blood cells are the only blood cell to have a nucleus?
White blood cells
___ (fatty substance) can narrow arteries
cholesterol
What are small airways that let air travel through to the alveoli?
Bronchi/Bronchus
Even tinier splits made only of smooth muscle, and are attached to the previous answer.
Bronchiole
___ are small air sacs
alveoli/alveolus
The ___ follows the pharynx (going down)
epiglottis
Above the trachea is the ___
larynx
After blood reaches the alveoli, there is diffusion of oxygen into the _____
bloodstream
The ribcage is ___ when breathing in
raised
The diaphragm is ___ when breathing in
lowered
Amount of oxygen in the air (nearest %)
21
Amount of CO2 in the air (nearest %)
0
Amount of pure oxygen in exhaled air (nearest %)
16
Amount of CO2 in exhaled air (nearest %)
5
How many bones are there in a human body? (adult)
206/207 if you broke one :)
Bones form the ____ system
skeletal
The largest bone in the body is the ___
femur
The bone marrow works with the _____ bone, which contains nerves and blood vessels
spongy/sponge
The _____ covers the bone, and is a living membrane
periosteum
The dead (and outermost) part of the bone is called the ______ bone
compact
The two types of joints are the synovial joints and the ______ joints.
immovable
The knuckle is a ___ joint.
hinge
____ joints allow the bones to rotate
pivot
Bones are often connected by ligaments, which are fibrous _____
tissue/tissues
The ends of the fingers and toes are called the ____
phalanges
Flexibility of the bones comes from ____
protein/proteins
The innermost part of the bone is called the bone x and is responsible for making y. Find x.
marrow
The innermost part of the bone is called the bone x and is responsible for making y. Find y.
blood
The axial division of the skeletal system has __ bones.
80/eighty
Movement is mainly made possible by the ____ division of the skeletal system.
appendicular
The purpose of the skull is to protect the ___.
head/brain
Muscle fibres form ____
muscle
The strength of a muscle depends on the ___.
fibres
______ fibres are best for explosive movements.
fast-twitch/fast-oxidative
There are _ types of muscles
3
Which one of these is the only one that has voluntary movement?
skeletal
Muscles are attached to bone by ____.
tendons
The muscle that protects the heart is called the ____ muscle
cardiac
The disease where the body mistakenly attacks itself is called Multiple ____.
sclerosis
_____ muscles are attached to bones.
skeletal
The _____ is responsible for allowing skeletal muscles to have voluntary movement.
spongy/tendon
Power is determined by the number of muscles that ____
contract/retract
When your arm is straightened, this means your _____ has contracted.
triceps
Which one of these is the only one that is non-striated?
smooth
Biceps face _____.
up/upwards
Tendons do not change in _____.
length
_____ is when you feel tired/have low energy that doesn't go away with sleeping or rest.
fatigue
To take out of your body is to _____.
excrete
This process is necessary to keep ____ alive.
cells
The kidneys filter out excess water and ___, a poisonous chemical.
urea
The skin excretes small traces of urea and water as ____.
sweat
Chemical formula for urea (kind of troll, just answer 1 to skip though)
1/CO(NH2)2
The lungs filter out __ from the blood
CO2/carbon dioxide
____ contains oxygen, which is carried around the body.
Haemoglobin/red blood cells
_______ means to balance and regulate
Homeostatic
The _____ regulate pH levels, salt and water levels, and blood composition.
kidneys
The ____ capsule is the outermost of the kidney, surrounding it.
renal
The ____ is a lighter-coloured section of the kidney, near the outside.
cortex
The medulla is a ____-coloured section of the kidney, at around the middle.
darker
Both of these contain ____.
nephrons/atoms/cells
The nephrons intertwine with _____ to form a sieve-like structure
arteries
The job of the nephrons is to detect ____ products and excrete them
waste/unneeded
The renal _____ brings blood to the kidney.
artery
The renal _____ brings blood away from the kidney.
vein
The tube between the kidney and the bladder is called the
ureter
The bladder stores ____, a combination of urea, water and other dissolved substances.
urine
The ____ excretes [answer to previous question] out of the body.
urethra
The two hormones of the kidney are the Antidiuretic Hormone and ____.
Aldosterone
Amount of kidneys in the body
2
Amount of kidneys necessary to survive
1
_____ in urine indicates the kidneys are not working
Protein
Blood in urine indicates kidney _____.
infection
Urine is mainly composed of
water
Urine can also be used to test for ____ like m*th*mph*t*m*n* (asterisks used to prevent JetPunk cancelling me)
drugs/PED's
We have __ trillion cells in the human body
30
The aim of the reproductive system is to create ___.
new life/life
Mitosis creates x cells from 1 parent cell
2
The daughter cells of mitosis are _____ to the parent.
identical
Mitosis is used to ____ cells.
repair/replace
Meiosis has _ stages
2
The parent cell has __ chromosomes
46/2n
After meiosis, there are _ cells.
4
Each of these cells contain only __% of the parent cell
50
This means they have __ chromosomes
23/1n/n
Meiosis is only used to create ____
gametes/sex cells
Male gamete
sperm
Female gamete
egg
_____ muscle cells are unable to divide
skeletal/cardiac
Chemicals and the sunlight's __ rays can alter genetic code of the cells
UV/ultraviolet
When cells divide uncontrollably, it is known as
cancer
Sperm fertilises with the egg to form a ___
zygote
Following this, they turn into an ____
embryo
After approximately 8-9 months, they come out of the body to form a ____
newborn/baby
Testes are designed to make ____ and hormones.
sperm
The horomone the testes make is called ______.
testosterone
Sperm is stored in the _____, where temperature is regulated.
scrotum
Sperm travels up the ____ ____.
sperm duct
This also has another name: the ___ ____.
vas deferens
Above this is the ____ ___.
seminal gland
Here, ___ is added
seminal fluid
The composition of this is mainly water and ____.
C6H12O6/glucose
This combined fluid is now called ___.
semen
This substance then travels through the ____
urethra
The ovaries in the female reproductive system hold the ____.
eggs/ovum
The _____ ___ is where sperm will fertilise the egg (if present).
fallopian tube
The _____ is where the zygote will grow.
uterus
The ___ breaks in the uterus, causing the lining of blood to break.
egg
The cervix only allows certain fluids through, including sperm and menstrual ____.
blood
The ____ guides the penis to the correct place.
vagina
Every 28 days, a ____ will occur, where blood exits the body via the vagina.
period
The time when the ovaries stop functioning is caused ____.
menopause
When a female and male gamete meet, this is called _____.
fertilisation
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2 Comments
+1
Level 74
Nov 1, 2024
Can you accept "color" in the question "Plants use ___, scent and nectar to try and attract pollinators."? Furthermore, you should fix the spelling of "cholesterol", which you misspelled as "cholestorol".
+1
Level 17
Nov 1, 2024
will fix, sorry about that