Matter
General properties
Types of substances
Natural vs Man-Made materials
Physical vs Quemical changes
100
Matter is anything that has volume, but not mass. True or False?
False. Matter has volume and mass.
100
Hardness determines the resistance that an object has to be... a) scratched b) broken
a) scratched
100
Define "pure substance". Give me 2 examples.
A pure substance is made up of only one type of matter. For example: sugar, salt, water.
100
Natural materials can be found in the nature and their origin can be... (there are 3).
Animal, vegetable (plant) and mineral origin.
100
Physical changes produce new substances. True or false?
False. Physical changes affect the state, position and shape of matter.
200
Mass tells us... a) how much matter is in an object b) the space an object occupies.
A) Matter tells us how much matter is in an object.
200
Elasticity determines how easily something recovers its original shape when it is deformed. True or false?
True. For example a hair band.
200
Tell me the difference between "heterogeneous mixtures" and "homogeneous mixtures" using an example.
In the heterogeneous mixtures you can see the different types of matter (pizza), but in the homogeneous mixtures you cannot (milkshake).
200
Give me 3 examples of physical changes and 3 examples of chemical changes.
Physical changes: when ice melts, when you make something with plasticine. Chemical changes: when you cook food, when food spoils.
300
Mention the 3 states of matter.
Solid, liquid and gas.
300
Honey has more viscosity than water. True or false?
True. The viscosity is the resistance of a liquid to flow.
400
Solids have got a fixed shape and a fixed volume. True or false?
True.
400
Which state of matter can be compressed more easily? Solid, liquid or gas?
Gas.
500
Liquids have got a fixed shape and a fixed volume.
False. Liquids haven't got a fixed shape.