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Random Science

Total questions: 26

Worksheet time: 13mins

Name
Class
Date
1.

What does this sign mean?

a)

Flammable

b)

Explosive

c)

Harmful to the environment

d)

Toxic

2.

What is the pH of hydrochloric acid?

a)

3

b)

7

c)

12

d)

2

3.

What is the process when you mix an acid and an alkali?

a)

Acidisation

b)

Neutralisation

c)

Alkalisation

4.

What is the pH level of an alkali?

a)

7+

b)

less than 7

c)

8-10

d)

14

5.

What is the symbol for water?

a)

H

b)

O

c)

AG

d)

H20

6.

How many elements are on the periodic table

a)

35

b)

118

c)

4,000,000

d)

119

7.

What is a compound?

a)

It is one type of atom

b)

It is two or more elements mixed toghether

c)

It is two or more elements joined together

8.

How does sound travel

a)

Longitudinal waves

b)

Traversal waves

9.

What is the speed of sound?

a)

434 m/s

b)

343 m/s

c)

1000 m/s

d)

20 m/s

10.

What is the unit of measurement for forces? (Multiple choice)

a)

m

b)

per cm 2

c)

newtons

d)

nanometers

11.

Is static energy a contact or non-contact force?

a)

Contact

b)

Non-contact

12.

Why is a producer at the bottom of a food chain?

a)

It can't defend itself

b)

All other animals eat them

c)

It creates it's own food

13.
An ecosystem is made up of _______ and ________ things.
a)
Living and nonliving
b)
Alive and dead
c)
Plants and animals
d)
Land and water
14.
What is another word for population of living things?
a)
Niche
b)
Habitat
c)
Species
d)
Organism 
15.
What is the long-lasting relationship between two different organisms?
a)
Symbiosis
b)
Mutualism
c)
Parasitism
d)
Commensalism
16.

What five animals do eagles eat?

a)

Corn, Thrush, Fruit Fly, Python and Mango

b)

Python, Rat, Wolf, Frog and Thrush

c)

Dragonfly, Lavenders, Grasshoppers, Butterflies and Wolf

17.
A subatomic particle that has a positive electric charge
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
18.
A subatomic particle that orbits an atom's nucleus, has a negative charge, and has very little mass
a)
Proton
b)
Neutron
c)
Electron
d)
Isotope
19.
The smallest unit of an element that still has the properties of that element.
a)
Atom
b)
Adam
c)
Nucleus
d)
Element
20.
The center of an atom, usually made of protons and neutrons
a)
Nucleus
b)
Proton
c)
Atomic Number
d)
Isotope
21.

The color of litmus in acid:

a)

Red

b)

Blue

c)

Purple

d)

Green

22.

The color of litmus in alkali:

a)

Red

b)

Blue

c)

Purple

d)

Green

23.

Who would win?

a)
b)
c)
24.

What does biotic mean?

a)

Living

b)

Dead

25.

What is the chemical symbol for silver

a)

S

b)

H

c)

AG

d)

C12H22O11

26.

Which of these are abiotic

a)

Fish, Weather and Gold

b)

Soil, Sun and Rock

c)

Tiger, Turtle and Human

d)

Weather, Soil and Human