Polarity
Which atom(s) in a molecule of water has a slight negative charge?
Oxygen
What is milk mostly made of?
Fat and water
Why can you "lift" the colors?
Because they sit on the surface tension.
What's the name of the insect who "skates" across the water?
Water skater
What's the name of the positive particle found in atoms?
Proton
Which atom(s) in a molecule of water has a slight positive charge?
Hydrogen
What do fat and water not do, which helps the experiment work and our cells not dissolve?
Mix
Why do the colors not sink?
They stay up off the surface tension of the water
Do a water skater's feet ever go below the surface?
No
What's the name of an atom with a charge/atom with an uneven amount of protons and electrons?
Ion
What does it mean for something to be polar?
Complete opposite
What is the main ingredient in food coloring that helps the experiment work?
Water
Where is this art form from?
Why does the "Jesus lizard" not sink?
The surface tension of the water can carry things denser than it
A bond where there is an exchange of electrons. It can happen either between a metal and nonmetal or nonmetal and nonmetal
How does water polarity affect surface tension?
The positive hydrogen sides are attracted to the negative oxygen sides are attracted to the positive hydrogen sides.
The molecules below the surface level are attracted to all molecules in all directions.
The molecules at the surface level can only be attracted downward since there is nothing above them to be attracted to.
This causes them to be compressed and tight together, forming a sort of skin at the surface
What does the dish soap do to the water molecules?
Separate them
Why can't you put more than one drop of ink at a time?
They're flat
What's a covalent bond?
A bond where electrons are shared. It can only happen between two or more nonmetals.
How does water polarity help it dissolve sodium chloride?
The positive ends of a water molecule (hydrogen) attach to the negative part of sodium chloride (chlorine). The negative ends of a water molecule (oxygen) attach to the positive part of sodium chloride (sodium). This pulls the compound apart and isolates the individual atoms.
Why does the food coloring expand at all?
Its water molecules are being separated.
Why do the colors move when the handle of the brush is dipped in?
Because it breaks the surface tension
What's unique about the Whirligig beetle?
It whirls on the surface of the water
What is the most electronegative element?
Fluorine