It Matters
Machines
The Solar System
Seasons
Material World
100
What are the three states of matter?
solids, liquids, and gases
100
Name two simple machines
lever, inclined plane, pulley
100
How many planets are in the solar system? Can you name them?
8, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
100
What are the seasons?
Summer, Autumn, Winter, Spring
100
Which material is more flexible, leather or glass?
leather
200
DAILY DOUBLE! What are the two types of changes in matter?
Physical and Chemical
200
Name two compound machines
mixer, bike, watch
200
What are self-luminous celestial bodies?
They produce heat and light themselves.
200
In which season are days shorter?
Winter
200
Which material is stronger, steel or leather?
steel
300
What happens when a thing changes, but the matter forming it is still the same?
A physical change
300
What kind of machine has a grooved wheel around which a rope or chain is placed?
a pulley
300
What is the movement of the Earth on its axis called? How long does it take?
Rotation, 24 hrs
300
What is the movement of the Earth around the Sun called? How long does it take?
orbit, 365 1/4 days
300
What kind of materials come from nature?
natural materials
400
What kind of change is a match burning?
chemical
400
Why are machines used?
to save time and effort, to help us do a task
400
Which planet is farthest from the sun?
Neptune
400
What happens every four years when an extra day is added to February?
a leap year
400
What kind of materials are manufactured by man from natural materials?
man-made materials
500
Do liquids and gases have a definite or variable shape?
variable
500
DAILY DOUBLE! Look at the picture. What kind of machine is this?
Inclined plane
500
What is the Earth's only natural satellite?
the Moon
500
What happens because of Earth's tilt and orbit?
Seasons
500
What kind of material is hemp?
natural
M
e
n
u