What is the amount of space that an object takes up
100
List three physical properties
What is color, shape, size, and texture
100
Name 2 chemical properties.
What is Reactivity, Ripening, Flammability, Rusting
100
Define independent and dependent variable.
Independent = I change ; Dependent = what is measured, Data
200
What device is used to measure weight?
What is a scale
200
What is the formula for density?
What is D=M/V
200
What are three physical properties of aluminum foil?
What is silver, thin, smooth
200
A piece of copy paper is burned and ashes and smoke are formed. Why is this a chemical change?
Chemical changes make new substances and usually cannot be reversed. Ashes and smoke are no longer paper.
200
Is water a product or reactant in cellular respiration?
Product (comes out of the reaction)
300
What device is used to measure mass?
What is a triple-beam balance
300
A box of books has a length of 5cm, width of 4cm, and a height of 5cm. What is the volume of the box?
What is 100cm3
300
If you have a cup of water and a gallon of water which would boil first? Why?
The cup would boil first because there is less water
300
Name one characteristic property of water.
Characteristic properties are properties that are unique to that matter. Ex: Boiling point of water is 100 degrees Celsius or its density is 1 gram per cubic centimeter
300
Describe the connection between photosynthesis and cellular respiration.
They are almost opposites. The products of photosynthesis are the reactants in cellular respiration. They need each other.
400
How would your weight and mass change if you could go to the moon?
What is you would weigh less but have the same mass.
400
A block of wood has the mass of 120 g and a volume of 60 cm3. What is the density?
What is 2 g/cm3
400
If you have a cup of water and a gallon of water at what temperature would each one boil?
What is They would both boil at 100 degrees Fahrenheit
400
If an ice cube melts, why is that a physical change rather than a chemical change?
It still the same substance just in different form (it can also be refrozen)
400
Name the greatest carbon source and sink on earth.
Source = burning of fossil fuels ; Sink = The ocean or atmosphere
500
Describe the difference between the weight of a brick and the mass of that same brick.
What is The weight of the brick can change depending on location; the mass of the brick can’t change unless matter is taken out.
500
Can a copper penny and a large copper bell have the same density? Why or why not?
What is Yes, their density would be the same
500
I went to the hair salon, I got my hair washed with shampooed, then cut, and then got my hair bleached. Identify which changes were chemical or physical.
In order: Physical, Physical, and Chemical
500
Timmy left a banana out for a week. When he bought it was green. A week later it was yellow. Did Timmy observe a physical or chemical change?
Although the color of the banana changed, Timmy observed a chemical change. The banana ripened which is a chemical property which caused the color to change.
500
How does CO2 in the atmosphere cause the ice caps on earth to melt?
CO2 is a greenhouse gas that can absorb heat. Heat in our atmosphere makes the planet hotter (global warming). When ice warms up it melts and causes our sea levels to rise.