Dinosaurs are ( extinct / extincts )
extinct
A person who is related to you but lived long ago.
Ancestor
When glaciers melt, where does most of the water go?
The ocean.
Why did Leo's teacher get mad at him?
His homework machine completed the homework incorrectly.
A task or job that a teacher tells you to do. Another word for homework.
Assignment
What epiphany did Leo have at the end of the story?
He realized that doing homework helps us learn.
Scientists ( make / makes ) hypotheses before conducting experiments.
make
The teacher ( is / are ) enthusiastic about today's lesson.
is
Why are glaciers melting?
Climate change/global warming
The moon ( orbit / orbits ) around the Earth
orbits
Actions that surprise or deceive people.
Tricks
What did the Rosetta Space Probe orbit around
A comet
Caterpillars ( become / becomes ) butterflies
become
There ( is / are ) many stages in the life cycle of a butterfly.
are
Who was Ardi?
The skeleton of a primate/An early human ancestor
True or False: The water on a comet is the same as the water on Earth
False!
A complete change in appearance or form
metamorphosis
When all the members of a species are dead
extinct
True or False: Ardi is 100 years old.
False! Ardi is 3.2 million years old.
Why did Leo want a homework machine?
He hated doing homework.