Science 1
Which force keeps planets in orbit around the sun: gravitational, magnetic, or nuclear
Gravitational
What is the chemical symbol for gold?
AG
Au
Go
Au
What planet is closest to the Sun?
Mercury
Venus
Earth
Mercury
What is the smallest unit of life?
cell
atom
molecule
cell
What is the main constituent of natural gas?
propane
ethane
methane
methane
What is the primary role of the nervous system:
transport oxygen
digest food
controls and coordinates body activities
controls and coordinates body activities
What planet is known as the Red Planet?
Jupiter
Venus
Mars
Mars
What is the hardest natural substance on Earth?
Granite
Diamond
Quartz
Diamond
What type of bond involves the sharing of electron pairs between atoms?
covalent bond
ionic bond
hydrogen bond
covalent bond
Which organelle is responsible for photosynthesis in plants?
nucleus
chloroplast
mitochondria
chloroplast
Which of the following is a greenhouse gas?
carbon dioxide
oxygen
argon
carbon dioxide
Who is known as the father of modern physics?
Albert Einstein
Isaac Newton
Nikola Tesla
Albert Einstein
What does DNA stand for?
Deoxynucleic Acid
Deoxyribose Acid
Deoxyribonucleic Acid
Deoxyribonucleic Acid
The speed of sound is faster in water than in air?
true or false
true
What is the primary function of red blood cells?
carry oxygen
fight oxygen
clot blood
carry oxygen
Venus is the closest planet to the sun?
true or false
False
What is the powerhouse of the cell?
Nucleus
mitochondira
ribosome
mitochondira
What is the main gas found in the Sun?
Helium
Oxygen
Hydrogen
Hydrogen
The chemical symbol for silver is Ag?
true or false
true
Which planet has the most moons?
jupiter
saturn
uranus
saturn
What is the SI unit of electri current?
OHM
AMPERE
VOLT
AMPERE
What is the chemical formula for water?
CO2
H2O
O2
H2O
What is the ph value of pure water?
5
7
9
7
What is the boiling point of water at standard atmospheric pressure?
90 degrees Celsius
100 degrees Celsius
110 degrees Celsius
100 degrees Celsius
Electrons have a positive charge
true or false
false