Answer:
Iron is a metal.
Iron wool is made up of thin strands of
iron loosely bundled together.
Your teacher has attached a piece of
iron wool to a see-saw balance. At the
other end of the see-saw is a piece of
Plasticine.
Iron wool can combust. Your teacher is
going to make the iron wool combust by
heating it.
If there is a change in mass, the see-saw
will either tip to the left or to the right.
Explanation:
Answer:
It's A
Explanation:
Liquid can heat things and so can steam.
Answer/Explanation:
Wood: E
Freshly brewed black coffee: O
Water: O
Lucky Charms: E
Salt: O
Dirt: E
Sausage and mushroom pizza: E
Air: O
Milk: O
Gold: O
Any mixture that looks the same through the substance is homogenous. The different parts are unable to be visibly seen. (Any periodic element is homogenous)
Any mixture that can be easily determined a mix and cannot be evenly separated or dispersed is heterogenous.
Answer:
I think beaker three will take longer to boil since there is more water present,compared to the other beakers
Complex compounds are broken down to simpler substances in catabolic reactions.
These kinds of reactions often occur in biological systems. In living organisms, complex compounds like lipids, proteins and complex sugar like cellulose are broken down into simpler forms. Products of these reactions are simple sugars, amino acids etc. but a certain amount of energy is also produced and stored in energy molecules for future use.
