Elements, Compounds, and Formulas
This type of substance is made with only one kind of atom.
What is an element?
A change in the state of matter (like boiling or melting).
What is a physical change?
What is inertia?
The type of heat transfer that happens when objects are directly touching.
What is Conduction?
Thermal energy moves from hot to cold.
How does thermal energy always move?
A ball of gas and plasma at the center of our Solar System.
What is the Sun?
This type of substance is made when two or more elements are chemically combined in a fixed ratio.
What is a compound?
A new substance is formed when two other substances mix together.
What is a chemical change?
The object continues moving in the same direction at a constant speed.
What happens when unequal forces act on an object?
The type of heat transfer where heat rises and cold sinks in a circular pattern.
What is convection?
Objects continue to transfer heat until the reach the same temperature.
What is thermal equilibrium?
The non-contact force of attraction that keep objects in orbit around the Sun.
What is gravity?
The formula with more atoms between ammonia is NH3 and sodium hydroxide is NaOH.
What is NH3?
A substance changing it state of matter (solid to liquid etc) without forming a new substance.
What is a physical change?
You are pulled into your seatbelt after slamming in the brakes.
What is an example of inertia (an object in motion, stays in motion until acted upon by another force)?
The type of heat transfer where energy moves across space with the need matter.
What is radiation?
The hot object will transfer its heat to the water until they reach the equilibrium.
What happens when a hot object is placed in cooler water?
Mercury, Venus, Earth, and Mars.
What are the inner (terrestrial) planets?
The total hydrogen (H) atoms in the formula for (NH3)3PO4
What is 9 hydrogen atoms?
Mixing two or more substances to create a new substance while releasing heat.
What is a chemical change?
A coin falls into a cup after the card it is resting on is pulled away.
What is an example of an object at rest, stays at rest until acted upon by another force?
Chicken cooking on a frying pan.
What is an example of conduction?
The speed of particles increases as their kinetic energy increases.
What is the reason temperature increases?
Made mostly of rock, dust and ice, often developing a tail when they get close to the the Sun.
What are comets?
The total number of atoms in the formula (NH3)3PO4.
What is 17 atoms?
The particles move faster and spread out as the solid becomes a liquid.
What happens to the particles of water when ice melts?
A train keeps moving in the same direction with no other force acting on it.
What is an example of constant velocity (constant speed in the same direction)?
The Suns heat warming the inside of a car.
What is an example of radiation?
A substances particles move faster and spread out when heated; the particles slow down and come close together.
What is the behavior of kinetic energy?
The area around a star where liquid water, moderate temperatures, and a suitable atmosphere exist allowing life to form.
What is the habitable (Goldilocks) zone?