Unit 9 Vocabulary
"After I finished the juice, the bottle was ________ and needed to be refilled."
empty
When you hit an object, what happens to the air molecules?
They start to shake
"The divers explored the coral reefs ________ to discover new marine life."
underwater
What disturbs animals' signals to their mates?
Man-made noises
"My phone will ________ when I receive a text message."
vibrate
What are three examples of a medium?
A solid, liquid, or gas
"The park was so ________ in the early morning, with birds singing and no one around."
peaceful
How does noise pollution differ from garbage and oil polluting the waters?
It cannot be seen
"The ground was ________ during the earthquake, and everything felt unstable."
shaking
Why can't we hear sound in outer space?
There is no medium (there is no air)
"The classroom was completely ________ as the students focused on their exams."
silent
What happens if animal signals get confused?
They animals can become injured or die
"The mattress was very ________, making it comfortable for sleeping."
firm
What happens when vibrations reach your ear?
The tiny hairs begin to shake and the nerves beneath sent a message to the brain
"Male birds often sing to attract female ________ during the mating season."
mates
What does the word obvious mean?
Something that is easily known or easy to see
"She is ________ the new shelf to the wall so it won't fall down."
attaching
What do you need in the experiment described in the story? (please list 5)
1. empty plastic bottle
2. small bell
3. matches
4. tape
5. a hard stick
"Please don't ________ me while I'm studying for my exam."
disturb
What are examples from the story of man-made sounds? (please list 4)
2. water sports
3. drilling into the ocean
4. special equipment used to find fish