What is the process of converting sunlight into electrical energy using photovoltaic cells called?
a) Geothermal energy
b) Wind energy
c) Solar energy
d) Hydroelectric energy
Answer: c) Solar energy
What is the study of fossils called?
a) Paleontology
b) Botany
c) Genetics
d) Microbiology
Answer: a) Paleontology
What is the largest planet in our solar system?
a) Mars
b) Venus
c) Jupiter
d) Saturn
Answer: c) Jupiter
Which gas is produced when plants undergo photosynthesis?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Hydrogen
Answer: a) Oxygen
What is the chemical symbol for gold?
a) Go
b) Au
c) Ag
d) Gd
Answer: b) Au
Which of the following is a renewable energy source?
a) Coal
b) Natural gas
c) Solar power
d) Nuclear power
Answer: c) Solar power
Which of the following is the largest ocean on Earth?
a) Atlantic Ocean
b) Indian Ocean
c) Arctic Ocean
d) Pacific Ocean
Answer: d) Pacific Ocean
What is the primary function of the ozone layer?
a) Regulating the Earth’s temperature
b) Filtering harmful UV radiation
c) Producing oxygen for plants
d) Preventing earthquakes
Answer: b) Filtering harmful UV radiation
Which type of energy is stored in a stretched rubber band?
a) Thermal energy
b) Electrical energy
c) Potential energy
d) Kinetic energy
Answer: c) Potential energy
What is the smallest unit of matter?
a) Atom
b) Molecule
c) Cell
d) Element
Answer: a) Atom
What is the chemical formula for water?
a) H2O2
b) CO2
c) H2SO4
d) H2O
Answer: d) H2O
Which color of light has the longest wavelength?
a) Red
b) Blue
c) Green
d) Yellow
Answer: a) Red
What is the process called when a solid turns into a liquid?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: a) Melting
Which of the following is an example of a chemical change?
a) Melting ice
b) Cutting paper
c) Burning wood
d) Dissolving salt in water
Answer: c) Burning wood
Which metal is liquid at room temperature?
a) Iron
b) Copper
c) Aluminum
d) Mercury
Answer: d) Mercury
What is the study of the Earth’s physical structure and history called?
a) Geography
b) Geology
c) Astronomy
d) Meteorology
Answer: b) Geology
What is the primary source of energy for the Sun?
a) Nuclear fusion
b) Chemical reactions
c) Thermal energy
d) Electrical energy
Answer: a) Nuclear fusion
What is the process of converting a liquid into a gas called?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: c) Evaporation
Which of the following is an example of a simple machine?
a) Pencil
b) Scissors
c) Bicycle
d) Smartphone
Answer: b) Scissors
What is the process of changing a liquid into a gas called?
a) Melting
b) Freezing
c) Condensation
d) Boiling
Answer: d) Boiling
What is the SI unit of electric current?
a) Ampere
b) Watt
c) Ohm
d) Volt
Answer: a) Ampere
What is the formula for calculating density?
a) Density = Mass × Volume
b) Density = Force × Distance
c) Density = Velocity × Time
d) Density = Work ÷ Power
Answer: a) Density = Mass × Volume
Which of the following is the largest organ in the human body?
a) Liver
b) Skin
c) Heart
d) Brain
Answer: b) Skin
Which gas makes up the majority of Earth’s atmosphere?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Hydrogen
Answer: b) Nitrogen
What is the process called when plants release water vapor through their leaves?
a) Photosynthesis
b) Transpiration
c) Respiration
d) Evaporation
Answer: b) Transpiration
What is the term for the process by which plants make their own food?
a) Respiration
b) Digestion
c) Photosynthesis
d) Absorption
Answer: c) Photosynthesis
Which of the following is not a primary color of light?
a) Red
b) Green
c) Blue
d) Yellow
Answer: d) Yellow
What is the study of the relationship between living organisms and their environment called?
a) Ecology
b) Biology
c) Zoology
d) Botany
Answer: a) Ecology
Which of the following is an example of a conductor of electricity?
a) Rubber
b) Glass
c) Plastic
d) Copper
Answer: d) Copper
What is the process called when a gas turns into a liquid?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: d) Condensation
Which of the following is not a type of electromagnetic radiation?
a) Radio waves
b) X-rays
c) Sound waves
d) Gamma rays
Answer: c) Sound waves
What is the chemical symbol for sodium?
a) S
b) Na
c) So
d) N
Answer: b) Na
What is the process called when a gas turns into a liquid?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: d) Condensation
Which of the following is a mammal?
a) Crocodile
b) Shark
c) Eagle
d) Elephant
Answer: d) Elephant
What is the process called when a solid turns directly into a gas without becoming a liquid first?
a) Condensation
b) Sublimation
c) Evaporation
d) Fusion
Answer: b) Sublimation
What is the chemical symbol for iron?
a) I
b) Fe
c) Ir
d) In
Answer: b) Fe
What is the process of converting a gas directly into a solid without becoming a liquid first called?
a) Melting
b) Sublimation
c) Evaporation
d) Condensation
Answer: b) Sublimation
Which of the following is the hardest natural substance on Earth?
a) Wood
b) Diamond
c) Glass
d) Plastic
Answer: b) Diamond
What is the chemical symbol for oxygen?
a) O
b) Ox
c) Om
d) Oz
Answer: a) O
What is the process of converting a gas into a liquid called?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: d) Condensation
What is the unit of measurement for force?
a) Kilogram
b) Meter
c) Newton
d) Watt
Answer: c) Newton
Which of the following is the basic unit of life?
a) Cell
b) Atom
c) Molecule
d) Organ
Answer: a) Cell
Which of the following is not a planet in our solar system?
a) Mars
b) Venus
c) Jupiter
d) Europa
Answer: d) Europa
What is the process called when a solid turns into a liquid?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: a) Melting
What is the process called when a liquid turns into a solid?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: b) Freezing
What is the speed of light in a vacuum?
a) 300,000 km/s
b) 30,000 km/h
c) 3,000 km/s
d) 300 km/h
Answer: a) 300,000 km/s
Which of the following is a greenhouse gas?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Hydrogen
Answer: c) Carbon dioxide
What is the process of converting a liquid into a gas called?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: c) Evaporation
What is the process of converting a gas into a liquid called?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: d) Condensation
What is the chemical symbol for copper?
a) C
b) Cp
c) Cu
d) Co
Answer: c) Cu
What is the study of the relationship between living organisms and their environment called?
a) Ecology
b) Biology
c) Zoology
d) Botany
Answer: a) Ecology
Which of the following is not a primary color of pigment?
a) Red
b) Green
c) Blue
d) Yellow
Answer: d) Yellow
What is the process of converting a solid directly into a gas without becoming a liquid first called?
a) Condensation
b) Sublimation
c) Evaporation
d) Fusion
Answer: b) Sublimation
Which of the following is a non-renewable resource?
a) Wind
b) Solar power
c) Natural gas
d) Geothermal energy
Answer: c) Natural gas
What is the chemical symbol for calcium?
a) C
b) Ca
c) Co
d) Cl
Answer: b) Ca
Which of the following is an example of a conductor of heat?
a) Plastic
b) Wood
c) Metal
d) Glass
Answer: c) Metal
What is the process called when a solid turns directly into a gas without becoming a liquid first?
a) Condensation
b) Sublimation
c) Evaporation
d) Fusion
Answer: b) Sublimation
What is the chemical symbol for silver?
a) S
b) Ag
c) Au
d) Si
Answer: b) Ag
What is the process called when a liquid turns into a gas?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: c) Evaporation
Which of the following is an example of a renewable resource?
a) Oil
b) Coal
c) Natural gas
d) Wind
Answer: d) Wind
What is the process of converting a gas into a liquid called?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: d) Condensation
What is the chemical symbol for potassium?
a) K
b) Ko
c) P
d) Pt
Answer: a) K
Which of the following is not a phase of matter?
a) Solid
b) Liquid
c) Gas
d) Energy
Answer: d) Energy
What is the study of the Earth’s atmosphere and weather called?
a) Geography
b) Geology
c) Astronomy
d) Meteorology
Answer: d) Meteorology
Which of the following is an example of a renewable energy source?
a) Coal
b) Natural gas
c) Solar power
d) Nuclear power
Answer: c) Solar power
What is the process called when a solid turns into a liquid?
a) Melting
b) Freezing
c) Evaporation
d) Condensation
Answer: a) Melting
What is the formula for calculating speed?
a) Speed = Distance × Time
b) Speed = Force × Distance
c) Speed = Mass × Acceleration
d) Speed = Work ÷ Power
Answer: a) Speed = Distance × Time
Which of the following is the largest organ in the human body?
a) Liver
b) Skin
c) Heart
d) Brain
Answer: b) Skin
What is the study of the Earth’s physical features, climate, and population called?
a) Geography
b) Geology
c) Astronomy
d) Anthropology
Answer: a) Geography
What is the chemical symbol for nitrogen?
a) N
b) Na
c) Ne
d) Ni
Answer: a) N
