Periodic table
Who created the periodic table
Dmitri Mendeleev
What happens to gas particles when heating a gas?
The particles fly fast and bump into each other, causing the gas to expand.
What's the difference between melting and dissolving?
When things dissolve, they break down, but turn into liquids when things melt.
What type of batteries are rechargeable?
Lithium Batterys
Who are the people who work on fireworks?
Pyrotechnics 🧌
What is an atomic number on an element?
The number of protons in an atom
What is kinetic energy?
The energy that's in constant motion. 🐒
What does it mean when a substance is insoluble in water?
It's unable to dissolve.
What is the most common fuel source?
Hydrogen
What were fireworks originally used for in 7th century china?
Scaring away enemies
How many rows are on the periodic table?
7
How many times do air particles bounce into each other per second?
Ten billion times per second.
What is the difference between solute and solvent?
The solute is the part of the solution that dissolves while the solvent does the dissolving.
Say you have a primary battery. What is the rod that is inside the middle of the battery called?
Carbon rod
What does the "binder" do in a firework?
It holds a firework together.
What are the four ancient elements that people thought were elements?
Water, Earth, fire, and air
Say you get a cup of Joe, aka coffee, and pour milk in it to cool it down. What happens to the particles?
The hot and cold particles collide and swap speeds, and they will be the same speed after a while.
What is the largest solute in volume?
The Earth's Atmosphere
What are fuel cells?
Cells that convert chemical energy into celetrical energy.
What does firework combustion produce?
Smoke and dust particles.
What's the difference between atomic numbers and atomic mass?
Answer: The atomic number is the number of protons in an atom, while atomic mass is the mass of an atom in kilograms.
What does the law of conservation of energy mean?
Energy is never created or destroyed during interactions
What is the solvent for life?
Water
What does it mean when the "zinc" runs out in a battery?
The battery dies and needs to be replaced.
What role does oxygen play in a firework?
It transfers lots of energy in the form of thermal energy and light.