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podium


a platform in front of an audience

The athletes stepped up onto the podium to accept their medals.

podium

elated


extremely happy

Kerry was elated to be hired for a great summer job.

elated

vault


a leap over something using your hands or other support; also, an event in women’s gymnastics

The gymnast got a perfect score on her vault.

vault

diagnosed


found by a doctor to have a particular disease

I was upset when the doctor diagnosed me with the chicken pox.

diagnosed

immune system


the parts of the body that protect you from illness

Andrew gets sick often because he has a weak immune system.

immune system

toxic


poisonous

Workers in power plants wear masks to protect themselves from toxic chemicals.

toxic

injected


used a needle to put medicine into someone’s body

The doctor injected Bella with a vaccine to help prevent the flu.

injected

devastating


extremely shocking and upsetting

My best friend Tori gave me devastating news—she is moving across the country!

devastating

climate


the usual weather in a place

The climate in Florida is much warmer than the climate in Boston.

climate

paleontology


the scientific study of fossils

Mary’s dad teaches paleontology, so he knows a lot about ancient life.

paleontology

fossils


remains of a plant or an animal from millions of years ago, preserved as rock

One of my favorite fossils at the museum is the Tyrannosaurus rex.

fossils

extinct


describes a living thing that has died out

Sadly, the giant panda is in danger of becoming extinct.

extinct

prehistoric


from a time before history was written down

Dinosaurs roamed the Earth during prehistoric times.

prehistoric
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