Hi can someone plz help me!! I’m behind on this and I really need help on it. I will try to mark as brainliest

You just need to do what it says. Build the model or use some things as substitutes if you are missing an ingredient and write down what you identified.

There isn't really much better help I could give, sorry. I hope this helps.

air

in a tire you fill a tire with air

then a couple days later you check the air pressure in the tire

hope this mark me brainliest