Weigh it out.
Carrots are cut into small pieces and mixed into a salad is an example of what kind of change?
Physical Change
an iron nail rusting is an example of what kind of change?
Chemical Change
A balance scale is used to measure an object. What is the instrument measuring?
mass
______________ is how we measure how much matter is in a given amount of space.
density
____________ is the amount of space an object takes up.
volume
_____________ is the amount of substance that can be dissolved in another substance.
solubility
What does weight measure?
Give an example of a chemical property of a sheet of paper.
Teacher will look at each groups answers
FALSE
What word is defined as -anything that has mass and volume.
Matter
What physical property does not change when the size of the sample changes?
density
What can you use to calculate the volume of an object?
Water Displacement
True or False: Matter is anything that has mass and takes up space.
TRUE
The law of conservation of mass states that mass cannot be created or destroyed. To what type of change does this law apply?
both physical and chemical changes
What do we call the characteristics that an object has the potential to do or not do?
Properties or Chemical and Physical properties
What is the volume of a rectangular solid that is 40 centimeters long, 10 centimeters wide, and 5 centimeters high?
2,000 cm3
Rust forming on a metal object is an example of what kind of chemical change?
oxidation
What is the density of an object with a mass of 5g and a volume of 2ml?
2.5 g/ml
A ______________________ can be measured without changing the identity of the substance.
physical property
What is the biggest difference between a chemical and a physical change?
Chemical change changes the identity (chemical makeup) of a substance, with a physical change the identity stays.
What is the equation to find DENSITY?
D = m / v
What is the volume of a box that is 20ft x 8ft x 12 ft?
1920 ft3
Marissa blows up balloons for a party. She decides how big or small to make each balloon. Why does the air she blows into each balloon take up all the space inside the balloon?
Air is a gas and so fills its container, the balloon, completely.
Trini adds 10 g of baking soda to 100 g of vinegar. The mixture begins to bubble. When the bubbling stops, Trini finds the mass of the resulting mixture. She determines its mass is 105 g. Why has the mass changed?
A gas has formed and left the mixture.
A metal coin has certain properties that can be measured. Which property of a coin is different on the moon than it is on Earth?
weight