Key Vocabulary
Read each word, its meaning, and the sentence it comes from. Tick the words you know.
Grade 5 · Words
a tiny cell that carries messages in the body
“An octopus has about 500 million neurons, the cells that carry messages in the body.”
a way of changing how you look so others cannot recognize you
“Octopuses are also masters of disguise.”
an animal that hunts and eats other animals
“Predators swim right past without noticing.”
to press something tightly, or to push through a small space
“It can also squeeze through a hole no bigger than its eye.”
light in color
“It can turn as pale as sand or as dark and bumpy as a rock.”
a place that keeps you safe from danger or bad weather
“They carry coconut shells to use as shelters later.”
the ability to learn, understand, and solve problems
“Using a tool and planning ahead are signs of real intelligence.”
to open something by turning it
“Scientists have watched octopuses solve puzzles and unscrew jar lids.”