FYQ

Question 1

What is physics?

Answer 1

It studies changes in matter that don’t affect nature.After a physical change the substances stays the same, so, it dosent change.

Question 2

What is chemistry?

Answer 2

It studies the composition of matter and changes that affect its nature.Chemical changes transform substances into another substances.

Question 3

What. is a metal?

Answer 3

It’s an element that tends to lose electrons.

Question 4

What is a non-metal?

Answer 4

It’s an element that tends to gain electrons

Question 5

What is a metalloid?

Answer 5

It’s a mixture of metals and non-metals.

Question 6

What are groups in the periodic table?

Answer 6

They’re the columns in horizontal. That all the elements in the same group have the same number of electrons. (1 to 18)

Question 7

What are the periods in a periodic table?

Answer 7

They’re the rows in vertical.That all the elements in the same period have the same number of layers.(7 rows)

Question 8

What happened in the 17th Century???

Answer 8

Robert Boyle established concepts of the elements as certain fundamental substances that make up matter.

Question 9

What happen in the 18th Century ??

Answer 9

Antonie Lavoisiercreated a list of 33 known elements,including gold, silver,carbon and oxygen.
Jacob Berzelius proposed the symbols for the elements and the latin name.

Question 10

What are the 6 steps in the scientific method ???

Answer 10

1. observe
2. search for info
3. make a hypothesis
4. experiment
5. analyse the data
6. Publish the results