Structure of Matter
What is made up of only one type of atom?
(atom, compound, element, polymer)
Element
Which of the following is a physical property?
A. Flammability
B. Reactivity with acid
C. Color
D. Ability to rust
C. Color
What type of energy is related to the motion of particles?
Kinetic Energy
Why are atomic models useful?
They allow us to see tiny objects!
Plastic is an example of a
Polymer
What is the connection called when atoms are held together in a molecule?
Bond
How could you tell the difference between aluminum and iron, when both elements were silver?
Iron can rust, aluminum cant
What happens to the thermal energy of a substance when it melts?
(Increases or Decreases)
it increases or gets warmer
Oxygen gas contains 2 oxygen atoms connected together with two bonds... what is the special name for this type of bond?
Double Bond
What is a synthetic material made from crude oil?
Polyster
Water (H₂O) is an example of a/ an...
(atom, compound, element, polymer)
Compound
Stainless steel is compound made of mostly iron. Why do you think material scientists added other elements to make it a better building material?
What happens to particle motion when thermal energy is added to a material?
(move faster, stay the same, or move slower)
Move faster
What color typically represents oxygen when building an atomic model?
(black, blue, red, white)
RED
What is a disadvantage of synthetic materials?
They can cause pollution/ toxic/ hazardous to humans
What is the smallest unit of matter?
(atom, compound, element, polymer)
Atom
How do scientists use chemical properties?
To identify a substance that might have similar physical properties to one another
What happens to the temperature of water when it continues to boil?
(increases, decreases, or stays the same)
It increases rapidly
Draw an oxygen molecule; remember oxygen has 2 connection spots!
O=O
What can introduce bias into a scientific experiment?
Opinions in data interpretation
What elements and how many of each are found in one molecule of carbon dioxide?
-CO₂
-1 Carbon atom inbetween 2 Oxygen atoms
O-C-O
Which of the following is NOT a physical property?
A. Mass
B. Volume
C. Density
D. Reactivity with acid
D. Reactivity with acid
What happens to thermal energy during condensation?
(increases, decreases, or stays the same)
It decreases or gets cooler
What is an extended structure made of?
(a few atoms/ molecules or a lot)
Lots of repeating atoms or molecules
What does a life cycle assessment include?
How it's made, used, and disposed of!