The Human Body
What organ pumps blood throughout the human body?
a) Liver
b) Brain
c) Heart
d) Lungs
c) Heart
What is the force that pulls objects toward the Earth?
a) Friction
b) Magnetism
c) Gravity
d) Buoyancy
c) Gravity
Which gas is most abundant in Earth’s atmosphere?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Helium
b) Nitrogen
How many planets are there in the solar system in 2024?
a) 7
b) 8
c) 9
d) 10
b) 8
What process do plants use to make their own food?
a) Photosynthesis
b) Respiration
c) Germination
d) Fermentation
a) Photosynthesis
What is the largest organ in the human body?
a) Liver
b) Skin
c) Brain
d) Lungs
b) Skin
Who is known for the three laws of motion?
a) Albert Einstein
b) Galileo Galilei
c) Isaac Newton
d) Nikola Tesla
c) Isaac Newton
What is the chemical symbol for water?
a) O2
b) H2O
c) CO2
d) H2SO4
b) H2O
What type of celestial object is the sun?
a) Planet
b) Comet
c) Star
d) Asteroid
c) Star
What is the largest mammal on Earth?
a) Elephant
b) Blue whale
c) Giraffe
d) Rhinoceros
b) Blue whale
How many bones does an adult human have?
a) 206
b) 195
c) 250
d) 300
a) 206
What unit is used to measure force?
a) Joules
b) Watts
c) Newtons
d) Amperes
c) Newtons
Which element is the lightest and first on the periodic table?
a) Helium
b) Hydrogen
c) Lithium
d) Oxygen
b) Hydrogen
Which planet has the most moons?
a) Jupiter
b) Saturn
c) Uranus
d) Neptune
a) Jupiter
How many legs does a spider have?
a) 6
b) 8
c) 10
d) 12
b) 8
Which blood type is considered the universal donor?
a) A+
b) O-
c) AB+
d) B-
b) O-
What is the unit of electrical resistance?
a) Volts
b) Amperes
c) Ohms
d) Joules
c) Ohms
What is the pH value of a neutral substance like pure water?
a) 0
b) 7
c) 14
d) 2
b) 7
What is the term for a star that has exploded?
a) Nebula
b) Supernova
c) Black hole
d) Pulsar
b) Supernova
The process by which a caterpillar becomes a butterfly is called:
a) Hibernation
b) Metamorphosis
c) Evolution
d) Molting
b) Metamorphosis
What hormone regulates blood sugar levels in the human body?
a) Insulin
b) Adrenaline
c) Glucagon
d) Thyroxine
a) Insulin
What phenomenon causes objects to feel lighter when submerged in water?
a) Tension
b) Buoyancy
c) Friction
d) Gravity
b) Buoyancy
What type of bond involves the sharing of electrons?
a) Ionic bond
b) Hydrogen bond
c) Covalent bond
d) Metallic bond
c) Covalent bond
What is the name of the first satellite launched into space?
a) Apollo 11
b) Sputnik
c) Voyager
d) Hubble
b) Sputnik
What part of a flower is responsible for producing pollen?
a) Stamen
b) Petal
c) Pistil
d) Sepal
a) Stamen