Matter matters!
A particle that is the smallest and most basic part of an element.
atom
melting ice
physical or chemical change?
physical change
The measure of a materials ability to be attracted to a magnetic field.
magnetism
This is the feel and look of the surface of an object
texture
the Earth system that includes all living things
biosphere
boiling water
physical or chemical change?
physical change
the change in state from liquid to gas
evaporation
This is a material's ability to dissolve in a liquid.
solubility
Which is not a part of the hydrosphere?
stream
ocean
volcano
lake
volcano
The amount of space an object takes up.
volume
burning wood
physical or chemical change?
chemical change
the change in state from gas to liquid
condensation
a group of parts that work together to complete a task
system
How can acid rain affect the biosphere?
Acid rain can kill fish in the stream.
Acid rain removes nutrients from the soil that plants need to grow.
This is a material that takes the shape of whatever container it is poured into, but MAY NOT fill it. The particles (atoms or molecules) have some space between them and can move past each other. They are not trapped in one place.
liquid
breaking an egg
physical or chemical change?
physical
Is a freshly squeezed orange juice a solution? Why?
No, the freshly squeezed orange juice has pulp. It is not evenly spread out throughout the mixture.
a substance where different materials are put together but each keeps its own properties
mixture
How does burning fossil fuels affect the atmosphere?
When fossil fuels are burned, they release large amounts of carbon dioxide, a greenhouse gas, into the air. Greenhouse gases trap heat in our atmosphere, causing global warming.
Choose the correct words.
The water molecule is a(n) (atom / element / compound) because it is made of (three atoms / one compound / two elements).
compound, two elements
A rotting banana is an example of a chemical change. What are the signs that tell us that a chemical change happened?
change in smell and taste
change in color
the process by which a chemical change occurs
chemical reaction
the amount of matter does not increase or decrease after a physical or chemical change
conservation of matter
How does drought affect the biosphere?
Bodies of water and soil dry up. Plants and animals will not thrive without water and good soil.