States of Matter / Atoms / Solubility

States of Matter

100

What is the state of matter that has the MOST kinetic energy? 

Gases

200

What is the name of the process by which a solid turns into a liquid?

Melting! 

300

What is the state of matter that has definite volume but not definite shape? 

Liquids! 

400

Why is that solids maintain a rigid shape while liquids and gases don't? 

Particles are arranged in patterns. 

500

What is the name of the process by which a gas turns into a solid? 

Deposition! 

Solubility

100

What is solubility? 

The ability of a substance to form a solution when placed into a liquid. 

200

In the following example: 

Milk + Milo powder

Which is the solvent, which is the solute? 

Milk is the solvent

Milo powder is the Solute 

300

Why is water considered a POLAR molecule? 

Because it has a negative pole (given by oxygen) and a positive pole (given by hydrogen). 

400

Why when we mix some substances, a solid product is formed (precipitate)? 

Because they are not soluble with one another (they cannot make a solution). 

500

Describe what happens when salt is added to water. Describe this in terms of the interactions between molecules. 

The negative oxygen of water pulls on the positive Na (Sodium), and the positive hydrogen pulls on the negative Cl (chlorine)

Atoms

100

What is an atom? 

The smallest particle of matter (of stuff) 

200

Is the electron positive or negative? 

Negative

300

What is the name of the following atoms: 

Na

Cl 

O

H

C

Sodium

Chlorine

Oxygen

Hydrogen

Carbon 

400

Why is the oxygen atom negative in the water molecule? 

Because it pulls electrons from hydrogen. 

500

Why does the molecule of salt NaCl is formed? Why is Na positive and Cl negative? 

Because Na gives Cl the last electron it needs to be more stable, making Na positive and Cl negative. 

Chemical and Physical Proccess

100

What is the difference between chemical and physical process? 

Chemical: change in chemical composition

Physical: change in physical properties 

200

Name two examples of physical processes 

Changes of state, change in shape, change in volume, change of amount of particles. 

300

Name two examples of chemical changes 

Rusting, flammable (burning something), cooking, chemical reactions (new substances formed). 

400

What are three indicators that a chemical reaction has happened? 

Change in temperature, change in color, precipitate, change in odor, bubble formation. 

500

Why when I put sugar into water, it is considered a physical change and not a chemical change? 

Because no new substance is formed, no chemical reaction happens, it is reversible. 

Crazy Questions

100

What is Miss Majo's favorite subject in the world?

Science - Brains!

200

Name all the pins that Miss Majo uses in her card holder 

Brain, molecule of dopamine, elmo, groot, my dog, another brain (lamp), el principito and a bunny 

300

What is Miss Majo's full name? Need to include both last names 

Maria Jose Navarro Gomez

400

What is Miss Majo's car color? 

Red

500

What is Miss Majo's favorite sport? 

Skiing!