For a liquid to become a solid, heat energy needs to be: added or removed?
Removed! The temperature needs to be colder.
What property of plastic makes it a good choice for the pot handle?
It is an insulator. It doesn't conduct heat.
Which property determines if something will float or sink?
density
The amount of space that an object takes up
volume
When something burns, which property is it: a physical or a chemical change?
chemical
Which property could help you identify between aluminium and iron?
Magnetism. Iron is magnetic, aluminium isn't.
The smallest possible units of matter
particles (atoms)
Particles are always moving. True or False?
True, depending on the amount of energy they have some move faster than others.
Toxicity and reactivity are examples of chemical properties of matter. True or false?
True
Physical or chemical change?
physical
This type of change results in a new substance and cannot be reversed.
chemical change
When heat is added to a solid, it becomes this state of matter.
liquid
Which is a change in matter that involves a change in a physical property but doesn't create a new substance?
physical change
Name the 4 states of matter.
liquid, solid, gas, plasma
Matter is made of _________ that are too small to be seen.
atoms (particles)
Matter in this state has a definite shape, a definite volume, and can't be compressed.
solid
color, shape, texture, odor, taste, malleability, conductivity, elasticity, magnetism, relative density, mass, opacity, volatility, diffusion, transparency and solubility are examples of what type of property?
physical property
Why is an inflated balloon heavier than an empty balloon?
It has air/gas inside of it.
The characteristics that we use to describe matter, for example: color, texture, flammability, magnetism, reactivity, toxicity, etc.
properties
Matter is not destroyed and it is not
created
Anything that has weight and takes up space
matter
The ability of matter to dissolve in something else
solubility
What happens to the particles of a liquid when we add heat/ energy?
The particles move faster and spread out more, it turns into a gas.