What do plants need to make their own food?
Sunlight, water, and carbon dioxide
What layer of Earth do we live on?
The Crust
Matter is anything that has what two things?
Mass and volume (takes up space)
What force pulls objects toward Earth?
Gravity
What star is at the center of our solar system?
The Sun
What is the largest organ in the human body?
Skin
What causes day and night?
Earth's rotation
What are the three common states of matter?
Solid, liquid, and gas
What simple machine is a ramp?
An inclined plane
What planet is known as the Red Planet?
Mars
What is the process by which plants make food?
Photosynthesis
What type of rock is formed from cooled lava or magma?
Igneous rock
What instrument measures temperature?
Thermometer
What force occurs when two surfaces rub together?
Friction
How many planets are in our solar system?
Eight
What is an organism that makes its own food called?
Producer
What process changes water from a liquid to a gas?
Evaporation
When ice melts into water, what type of change occurs?
Physical Change
A change in an object's position is called what?
Motion
What causes the phases of the Moon?
The Moon's position relative to Earth and the Sun
What system in the human body carries blood throughout the body?
The circulatory system
What are the four main stages of the water cycle?
Evaporation, Condensation, Precipitation, and Collection
What is the smallest unit of matter?
Atom
What are the two forces acting on a falling parachute?
Gravity and air resistance
What galaxy contains our solar system?
The Milky Way