Chemistry
What is a physical property?
Any property that is measurable, whose value describes a state of a physical system.
What is potential energy?
The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors.
What is our galaxy called?
The Milky Way.
What is the lab tool that makes things look bigger?
A magnifying glass/microscope.
True or false:
Pluto is a planet.
False.
What is a chemical property?
A property or characteristic of a substance that is observed during a reaction in which the chemical composition or identity of the substance is changed.
What is kinetic energy?
Energy that a body possesses by virtue of being in motion.
Name the planets in order starting with Sun.
Sun, Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune.
What is Earth's path around the Sun called?
An orbit.
True or false:
The Sun is one of the biggest stars in the universe.
False.
What are some signs of a chemical reaction?
Production of gas, odor, color change, temperature change, and production of a precipitate.
What are some things you get energy from?
Food, water, and the sun.
What is the difference between a planet and a dwarf planet? Give an example of each.
A planet clears the area around its orbit, but a dwarf planet can't. An example of a planet could be any planet in our solar system, and a dwarf planet could be Pluto.
What is the colored part of a human eye called?
The iris.
True or false:
There are 8 major phases of the moon.
True.
What are some examples of physical changes?
Melting ice, mixtures, and crushing a can.
What is the Law of Conservation of Energy?
Energy cannot be created nor can it be destroyed.
What's the difference between a meteor, meteoroid, and meteorite?
Meteor-the flash of light that we see in the night sky when a small chunk of interplanetary debris burns up as it passes through our atmosphere.
Meteoroid-the debris itself, and most are so small they vaporize before entering the Earth’s atmosphere.
Meteorite-anything that survives the fall and lands on Earth.
What would happen if the Earth's crust moved suddenly along a fault?
An earthquake.
True or false:
There is a galaxy called Snickers (like Milky Way) and Kit Kat.
False (but it should be true).
What are some examples of a chemical change?
Burning milk, cooking an egg, iron rusting, and baking a cake.
What is the energy transformation process of a hot air balloon?
Chemical energy - heat energy - mechanical energy.
What 2 elements make up most of a star?
Hydrogen and helium.
What animals only eat plants?
Herbivores.
True or false:
The Sun is 93,000,000 miles away from Earth.
True.