heartbeat and pulse lb

Your heart beats about .......... times a minute.

When you're grown up, it will beat about ........... times a minute.

When you are active, the hearts needs more ................. and ............

• energy

• food

• blood

• oxygen

Tags

NGSS.MS-LS1-3

Why does the heart need to beat more when you are active?

How can we count our heartbeat?

The pulse is caused by the ............. of the blood as the heart pumps it to the rest of the body.

• oxygen

• food

• pressure

• beating