Answer:
Lithium
Explanation:
I believe it is Lithium. It can easily be cut with a knife and is the 3rd lightest non gas on the periodic table that is not a gas.
Hot air balloons have hot air inside them, which is less dense as the air around it. Thus it rises. A cold air balloon would sink because the air would be more dense than the air around it. Also, the balloon’s volume would vary in size depending on the weight of the balloon.
There are three variables independent, dependent ,and controlled
Answer:
i believe it's C
Explanation:
the result of multiplying (2.5 * 1010) and (3.5 x 10-7) is 8.8.10^3
