First Grade Science
What happens when the North and South pole of a magnet are put together?
They repel each other / push away.
What is Matter?
Anything that takes up space. Or just "stuff".
What is the name of the force that resists motion when two objects contact each other?
Friction.
What causes the seasons to change?
The tilt of the Earth's axis. When the Northern Hemisphere is tilted away from the sun, it is winter in the north. When the Northern Hemisphere is tilted towards the sun, it is summer in the north.
How does your mass on Earth compare to your mass on the Moon?
It's the same; Mass is not affected by location. Your weight would change, not your mass.
Which planet do we live on?
Earth.
What are the 3 states of matter?
Solid, Liquid, Gas.
Double points if they mention Plasma.
Name the largest ball-and-socket joint in the body?
The hip joint.
Which planet is closest to the sun?
Mercury.
What is considered the "brain" of a cell?
The nucleus.
How do we measure temperature?
What do you call the series of changes that many animals go through in life?
The Sun, and all the objects that orbit it make up what?
The Solar System.
Which land animal can open its mouth the widest?
Hippopotamus
What body system allows your to breathe?
The respiratory system.
What 3 things do plants need to survive?
Sunlight, Water, Soil.
What states of matter take the shape of their containers?
Liquid, Gas.
No, you cannot put any salt water fish in a fresh water environment.
Why do hot air balloons float?
Hot air inside the balloon rises, and pulls the balloon upwards with it.
What type of reaction produces fire?
Combustion reaction.
Why do things fall?
Gravity.
What is the most common unit for measuring temperature. Double points if the SI unit is named.
Celsius (C). The SI (International System of Units) unit for temperature is Kelvin (K).
When is your shadow its shortest?
Noon. (Or whenever the sun is directly over head).
What is a scientist that studies all living things?
Biologist.
What is the pH of pure water?
7