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Flashcards in 9 Weeks Test 3 Sci Deck (17)
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0

What is a marterial that attracts iron and that contains iron?

B.magnet

1

Where on a magnet is the magnetic force the strongest?

C.at either or north or South Pole

2

In magnetized material, all or most of the magnetic domains are arranged in the same way?

C. Direction

3

You can destroy a magnet by?

B. Heating it

4

Every million years or so earths magnetic field has ________.

Reversed direction

5

The region of earths magnetic field shaped by solar wind is ______________.

Magnetosphere

6

The area of force around a magnet is called the magnet's _________.

Magnetic field

7

A group of atoms with their magnetic fields pointing in the same direction is called a _____________\

Magnetic domain

8

A magnet made from Material that stays magnetized for a long time is called a __________ magnet.

Permanent

9

A glowing region in earths atmosphere caused by charged particles from the sun is called an__________\

Auroa

10

A well mixed mixture that contains a solvent and at least one solute is called a ________

Solution

11

Which part of the solution is present in the biggest amount

Solvent

12

What is the substance present in the smaller amount?

Solute

13

Elements within a group have the same number of _________

Valance electrons

14

What is solubility?

A measure of how much solute can dissolve in a solvent at a given temperature

15

The ________ of an element is the number of protons in the nucleus of an atom.

Atomic #

16

What is a row of elements across the periodic table ?

Peroied