Human Anatomy
The largest organ
What is skin
The hardest substance in the human body
What is tooth enamel
The pH of pure water
What is seven
The hottest planet in the solar system
What is Venus
The gas released during photosynthesis
What is oxygen
The muscular tube that carries food from the throat to the stomach
What is the esophagus or the food pipe
The number of bones in the human body
What is two hundred six
The parts of water
What is one hydrogen and 2 oxygen
These are made of dust and ice
What are comets
The primary functions of roots
What is absorbing water/nutrients, anchoring the plant, holding the soil in place and supporting the plant
The balance of human systems
What is homeostasis
The shape of the DNA molecule
What is double helix
The parts of graphite
What is carbon atoms
The three planets with rings
What is Saturn, Uranus and Neptune
The green pigment in leaves responsible for trapping light
What is chlorophyll
The pigment responsible for skin color
What is melanin
The number of chronosomes in the human body
What is forty six or twenty three pairs
The number of electrons the second shell of the atom can hold
What is 8
The region around a star where liquid water can exist, suitable for life
What is the Goldilocks zone
The plant tissue that transports water throughout the plant
What is xylem
The three main layers of the skin
What is the epidermis, dermis and hypo dermis
The name of a biological catalyst
What is an enzyme
The metal that melts at 85.57 degrees Fahrenheit and is safe for humans but deadly to other metals
What is gallium
What is Andromeda
The reproductive part of a flower
What is pistil