Space
Chemistry
100
This planet is referred to as the red planet.
What is Mars? 
Mars is the fourth planet from the Sun, known as the "Red Planet" due to its rusty, iron-rich soil and dust. It is a cold, dry, desert-like world with a thin carbon dioxide atmosphere, but evidence suggests it once had liquid water and may have been habitable for life. Do you think that there’s life on Mars?
100
This toxic, liquid metal used to be used in thermometers. There is also a planet that shares the same name.
What is mercury? 
Known for being the only metallic element that is liquid at room temperature. It used to be called “quicksilver.”
200
He was the first person to walk on the moon.
Who is Neil Armstrong? 
Neil Armstrong was an American astronaut and aeronautical engineer who became the first person to walk on the moon in 1969 as commander of the Apollo 11 mission.
200
These are the smallest unit of life, and all living organisms are made up of them. It starts with a “C.”
What are cells? 
A cell has several small structures inside it, including the nucleus, mitochondria, endoplasmic reticulum, and Golgi complex.
300
This planet has rings around it and starts with an “S.”
What is Saturn? 
Saturn is the sixth planet from the Sun and the second-largest in our solar system, a gas giant known for its spectacular ring system made of ice and dust. Composed primarily of hydrogen and helium, Saturn is less dense than water and would float in a large enough ocean.
300
This reaction happens when you mix baking soda and vinegar.
What is foaming and fizzing? 
The solid baking soda and liquid vinegar combine to create a gas and a liquid, which then forms a foam, or colloid.
400
This small, rocky or metallic body crashed into Earth 66 million years ago and caused the dinosaurs to become extinct.
What is an asteroid? 
Astroids are too small to be considered planets and are essentially leftovers from the early formation of the solar system, with the majority located in the asteroid belt between Mars and Jupiter.
400
This occupies space and has mass.
What is matter?
500
This is one of the largest and most versatile telescopes in the world, named after the famous astronomer Edwin Hubble.
What is the Hubble Space Telescope? 
The Hubble Space Telescope was funded and built in the 1970s by NASA with contributions from the European Space Agency. Its intended launch was in 1983, but the project was beset by technical delays, budget problems, and the 1986 Challenger disaster.