WorksheetsH2O Lessons 11-14
Total questions: 14
Worksheet time: 7mins
What is a solvent?
a substance only found in gas form
a substance that causes a chemical reaction
a substance that does not mix with others
a substance that dissolves other substances
Why is water known as a universal solvent?
it dissolves all known substances
it dissolves only solid substances
it is able to act on and dissolve many substances
it dissolves substances faster then others
What is dissolving?
water can pull apart other substances because it is "Sticky"
water can put back together many different substances
water is sticky so it attracts only gases
water is sticky so it attracts only solid substances
What is an example of cohesion?
water molecules repelling other substances
water molecules breaking apart
water molecules being attracted to each other
water molecules being attracted to air
Water has a high surface tension because-
cohesion between the molecules make it weaker
cohesion between the molecules make it strong together
water molecules are weak when they are together
water molecules break apart to bond with other substances
What force of attraction explains the rounded height of the water drop compared to the flatness of the alcohol drop?
adhesion
surface tension
residue
cohesion
Droplets of rain water remain on a blade of grass. This is most likely a result of which of the following?
solubility
chemical change
chemical reaction
adhesion
The diagram shows a natural process of weathering rock. Which statement best explains why this process results in weathering?
Chemicals can wear away rock.
Frozen water dissolves most types of rocks.
Water has a larger volume when it freezes.
Water has a larger volume when it heats up.
Which is not a property of water?
it has a low surface tension
It is denser as a liquid then a solid
it commonly exists in all three states of matter
it is a universal solvent
Which of the following explanations best describes why ice cubes float in a glass of water?
The ice is more dense than the water.
The ice weighs more than the water.
The water weighs more than the ice.
The water is more dense than the ice.
All living and non living things are made up of elements. What are elements?
a substance that has been broken down
a pure substance made up of only one type of atom
a substance made up of different types of atoms
a pure substance made up of only two types of atoms
How many DIFFERENT elements are in this equation?
1
2
3
4
3. Oxygen gas is written O2(2 is a subscript), which means it is a molecule made from two oxygen atoms. How could oxygen gas be classified?
Compound
Element
Greenhouse Gas
Noble Gas
A substance made up of two or more elements that have been chemically combined is called -
an atom
a compound
an element
a mixture
