Chemistry
What is the center of an atom called?
The nucleus
A person who studies biology is called
A biologist
True or false?
The adult human body has over 500 bones.
False
The gemstone Ruby is typically what color?
Red
The galaxy our solar system is in is called
The Milky way Galaxy
What is the main gas found in the air we breathe?
Nitrogen (78%)
What is the name of the process plants use to convert sunlight into food?
photosynthesis
What is the name of the substance that gives skin and hair it’s pigment?
Melanin
What is the name of the deepest part of the worlds oceans?
The Mariana Trench
A quantity that has both magnitude and direction is called
A Vector
At room temperature, the only metal found in liquid form is
Mercury (Hg)
Which famous scientist introduced the idea of natural selection?
Charles Darwin
What substance are nails made of?
Keratin
What is the second most common gas found in the air we breathe?
Oxygen (21%)
The force by which a planet or other body draws objects toward its center is
Gravity
Atoms that have the same atomic number but different mass numbers are called
Isotopes
Animals which eat both plants and other animals are known as
Omnivores
The colored part of the human eye that controls how much light passes through the pupil is called the?
Iris
Over a long period of time while under extreme heat and pressure, graphite turns into which precious mineral?
Diamond
Electric current is typically measured in
Amperes
The process in which an atom spilts into smaller parts in a nuclear reaction is
Nuclear Fission
A change of the DNA in an organism that results in a new trait is known as?
Mutation
The bones that make up your spine are called?
Vertebrae
Name the 3 time periods of the dinosaurs.
Triassic, Jurassic and Cretaceous
When light bends as it enters a different medium the process is known as what?
Refraction