Science! Flashcards

(9 cards)

1
Q

IWhat are elements

A

Substances that only contain 1 type of atom

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2
Q

How many types of atoms are there?

A

Approximately 100

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3
Q

What is the unit used to measure forces?

A

Newtons, N

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4
Q

Which force lets you stay on earth without falling off

A

Gravity :)

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5
Q

What term means the taking on of oxygen and giving out of carbon dioxide

A

Gas exchange

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6
Q

What is another word for windpipe in your respiratory system

A

Trachea

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7
Q

Which force slows you down and is very slippery

A

Friction!

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8
Q

What is the other name for group 1 elements?

A

Alkali metals

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9
Q
A
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