Properties of Matter
This is anything that has mass and takes up space.
Matter
A change that creates a new substance.
Chemical Reaction
Fizzing bubbles are evidence of this.
What is a chemical reaction?
Plants use sunlight, water, and carbon dioxide to make their own food through this process.
Photosynthesis
Vinegar is an example of this type of substance.
Acid
This property describes how much space an object takes up. Can be calculated using length x width height
Volume
Rust forming on a bike is an example of this.
Chemical change
Which ingredient is an acid: baking soda or vinegar?
Vinegar
This force pulls objects toward Earth.
Gravity
Baking soda is an example of this type of substance.
base
This property tells how much matter is in an object. Similar to weight....
Mass
Name one sign that a chemical reaction has happened.
Gas bubbles, temperature change, color change, light, odor, precipitate.
Why did the bag inflate during the baking soda and vinegar experiment? The one where we made "explosions"...
Gas fills it
What is the main source of energy for almost all life on Earth?
THE SUNNNNNN
When an acid and a base are mixed together, they often produce this gas.
gas bubbles
A property that can be observed.
Physical
Baking a cake is considered this kind of change.
Chemical Change
When a tablet fizzes in water, what evidence shows a reaction?
Gas bubbles, fizzing
When water changes from a liquid into a gas, what is this process called?
Evaporation
Scientists can use this special liquid to tell whether a substance is an acid or a base by changing color.
Indicator
Name 1 physical property of matter.
Color, texture, hardness, magnetism, density, shape, odor, etc.
Why can't chemical changes usually be undone?
Because a new substance has formed.
Corn starch and water mix to create....
A rabbit population decreases after wolves move into an area. Why did this most likely happen?
The wolves are predators that eat rabbits, so the rabbit population decreases.
Name a property of an acid.
Taste sour