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year 7 Science Homework Week 5

Last updated over 4 years ago

13 questions

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Question 1

1.

Question 2

2.

Question 3

3.

Question 4

4.

Question 5

5.

Question 6

6.

Question 7

7.

Question 8

8.

Question 9

9.

Question 10

10.

Question 11

11.

Question 12

12.

Question 13

13.

Which substance is made of only one type of atom?

Element

Atom

compound

mixture

Which substances contain two or more different types of atoms chemically bonded together?

Element

atom

compound

mixture

What is the smallest part of an element that can exist?

Element

atom

compound

mixture

What does diatomic means?

Three atoms chemically bonded

Two atoms chemically bonded

Two compounds chemically bonded

How would you separate compounds?

Chemical Reaction

Physical Process

Burn it

What is a “pure substance”?

Only contain two types of element or compound

Only contains one type of element or compound

Only contains one type of compound

What type of substance contains only two or more types of atom that are chemically bonded?

Element

Compound

Mixture

What type of substance contains only one type of atom?

Element

Compound

Mixture

How would you separate mixtures?

Chemical Reaction

Physical Process

Burn it

Which process transports minerals against the concentration gradient.

Osmosis

Diffusion

Active transport

Diffusion is the spreading out of particles resulting in a net movement from an area of ..................... to an area of low concentration

Higher concentration

low concentration

the same 

distance

the difference between an area of higher concentration and an area of lower concentration is known as a.........

Temperature

less concentrated

concentration gradient

thin

increasing the................... increases the rate of diffusion

Stop

temperature

time

diffusion