Name the four states of matter a fifth grade student should know.
solid, liquid, gas, and plasma
100
What is the formula for volume? What units are used to find volume?
LxWxH=volume
Volume of a solid is m3.
Volume of a liquid is L.
100
Tearing paper is what kind of change?
phyiscal
100
What is the difference between mass and weight?
Mass is the amount of matter in an object and weight is the a measurement of the gravitional pull on an object.
200
Name two phyical properties of an apple.
red and solid
200
Which states of matter have no definitie shape?
gas and liquid
200
What is the formula for density?
mass/volume=density
200
Conduct a phyiscal change on an apple.
cut it, bit it, smash it
200
Oil has a density of .92g/mL. Blood has a density of 1.04g/mL. Which will float in tap water and which will sink in tap water?
The oil will float and the blood will sink.
300
You have 20g of paperclips and 20g of feathers. Which has more mass?
The masses are the same. Mass is measured in grams and 20g=20g.
300
Which state of matter has no definite shape and no definite volume?
Gas
300
A brick has the mass of 100g and the volume of 25cm3. What is the density of the brick?
100g/25cm3=4g/cm3
300
Crushing a rock is what type of change?
physical
300
You have two equally sized objects, how would you determine which object is more density?
Find the mass. We know that the volumes are equal, so in this case we can just find the mass, and the object with the larger mass will have a higher density.
400
Define volume and mass.
Mass is the amount of matter in an object. Volume is the amount of space an object takes up.
400
What is plasma? Where can it be found?
Plasma is an electricitcally charged gas that can be found in stars.
400
1cm3=1__
1mL
400
Water evporating from a pond is which type of change?
physical
400
Diamonds are made of which element?
Carbon
500
Density is a physical property. What is the unit(s) of measurement for density?
density=g/cm3
500
What is the state of matter when an object has properties of two states of matter? Example-jello, gak.
colloid
500
An object has a density of 2g/cm3 and a mass of 10 grams. What is the volume?
10g/?cm3=2g/cm3
5cm3
500
If you cut an apple and leave it one the counter, the inside will start to turn brown. Why does this happen? What kind of change is occuring to the apple?
The oxygen is interacting with the surface of the apple. This is a chemical change.
500
What question should you ask yourself to determine if a physical change has occured?
a) Has the volume of the substance changed?
b) Does the change form a new substance?
Explain
A because volume is a phyiscal property and adding or losing volume, you still have the same substance. Forming a new substance is a chemcial change.