This is the state of matter that water becomes when it freezes
What is a solid?
This animal is known for building dams in rivers.
What is a beaver?
This planet is known as the Red Planet.
What is Mars?
This simple machine helps lift heavy objects with a rope and wheel.
What is a pulley?
This device lets you type, click, and play games on a screen.
What is a computer?
Mixing vinegar and baking soda creates this gas
What is carbon dioxide?
Animals that only eat plants are called this.
What are herbivores?
The star at the center of our solar system is called this.
What is the sun?
Engineers often build small versions of inventions called this
What are prototypes?
This invention by Alexander Graham Bell changed communication forever.
What is the telephone?
This tool is used in science labs to look at tiny things
What is a microscope?
This animal can regrow a lost arm.
What is a starfish?
People who travel into space are called this.
What are Astronauts?
This shape is often used in bridges because it is very strong.
What is a triangle?
This invention lets people print objects layer by layer using plastic.
What is a 3D printer?
The process of water turning into vapor is called this.
What is evaporation?
The largest animal on Earth is this ocean giant.
What is a blue whale?
This planet has famous rings made of ice and rock.
What is Saturn?
Bridges, towers, and roads are designed by this type of engineer.
What is a civil engineer?
This renewable energy source uses sunlight to create power
What is solar energy?
This part of an atom has a negative charge.
What is an electron?
This process helps a caterpillar become a butterfly.
What is metamorphosis?
This force keeps planets orbiting around the Sun.
What is gravity?
The process of improving and testing inventions again and again is called this.
What is the design process?
This type of system allows computers and robots to “learn” from information.
What is artificial intelligence?