The Human Body
This organ pumps blood throughout the body, delivering oxygen and nutrients to tissues.
What is the heart?
Animals that eat only plants are called this.
What are herbivores?
This gas makes your voice sound like a squeaky chipmunk when inhaled.
What is Helium?
Tides are caused by this celestial body.
What is the moon?
This surprising animal can survive for weeks without its head before eventually dying.
What is a cockroach?
This is the largest and strongest bone in the human body.
What is the femur?
This biological process allows some animals to blend in with their surroundings to avoid predators or sneak up on prey.
What is camouflage?
This type of chemical bond involves the sharing of electron pairs between atoms.
What is a covalent bond?
This phenomenon occurs when the Moon passes directly between Earth and the Sun, temporarily blocking sunlight.
What is a solar eclipse?
Bananas are slightly radioactive because they contain this element also found in nuclear reactors.
What is potassium?
This part of the brain controls balance, coordination, and fine motor movement.
What is the cerebellum?
This type of symbiotic relationship benefits both organisms involved — like bees pollinating flowers.
What is mutualism?
These elements, found on the far right of the Periodic Table, are known for being unreactive.
What are noble gases?
This planet’s extreme greenhouse effect makes it the hottest in the Solar System.
What is Venus?
This chemical in hot peppers tricks your brain into thinking it’s burning even though there’s no actual heat.
What is capsaicin?
This dome-shaped muscle helps you breathe by contracting and relaxing to change lung volume.
What is the diaphragm?
This group of animals undergoes complete metamorphosis, transforming from larva to pupa to adult.
What are insects?
The pH scale measures how acidic or basic a solution is, based on the concentration of these ions.
What are hydrogen ions (H⁺)?
This layer of Earth’s atmosphere contains the ozone layer, which protects us from harmful UV radiation.
What is the stratosphere?
Octopuses have three hearts, and this happens to two of them when the animal swims.
What is they stop beating?
The human skull is made up of this many bones fused together in adulthood.
What is 22?
Members of this phylum have segmented bodies, jointed appendages, and exoskeletons made of chitin
What are arthropods?
Elements in the same vertical column of the Periodic Table share this characteristic.
What are similar chemical properties/reactivity (or the same number of valence electrons)?
Hot springs form when groundwater is heated by this source deep within Earth.
What is geothermal energy (or heat from magma)?
This organism can survive being frozen, boiled, and even squished, earning it the nickname “superbug.”
What is a tardigrade?