Fun Facts
Fun Facts
Math
Definitions
Definitions
100
In what ways can matter change?
It can change in three familiar states-solid, liquid, and gas
100
Since the 1800's all scientists have known that all matter is made of what?
Atoms
100
How many grams are in 1.6 kilograms?
1,600 grams
100
What is a element?
A pure substance that cannot be broken down into any other substances by chemical or physical changes
100
What is matter?
Anything that has mass and takes up
200
When ice changes to liquid water, it absorbs______from surrounding matter.
Energy
200
How many elements are there?
Slightly over 100
200
How many grams are in .003 kilograms?
3 grams
200
What is weight?
A measurment of the force of gravity on you
200
What is a atom?
A basic particle from which all elements are made
300
What are six forms of energy telated to changes in matter?
Kinetic, Potential, Chemical, Electromagnetic, and Electrical energy
300
Why do you wheigh less on the moon than on Earth?
Because the moon has much less mass than the Earth therfore there is less gravitational pull
300
How many grams are in .23 kilograms?
230 grams
300
What is density?
Relates the mass of a material in a given volume
300
What is a chemical bond?
A force of attraction between two atoms
400
Name the two properties of matter
Physical and chemical properties
400
How can you measure the volume of an irregular object?
One way is to submerge the object in water in a graduated cylinder
400
What is the density of a block if its mass is 200 grams and its volume is 250cm(250cm cubed)?
.80 g/cm cubed
400
What is a exothermic change?
It is when energy is released
400
What is physical property?
A characteristic of a pure substance that can be observed without it canging into another substance
500
What is photosynthesis?
A series of chemical changes in which plants convert electromagnetic energy from the sun into chemical energy
500
What is the formula for density?
Mass/Volume
500
What is the volume of a brick if its length is 20cm, its height 9.5cm, and its width 5.7cm?
1,083 cm cubed
500
What is electromagnetic energy?
A form of energy that travels through space as waves
500
What is a homogenous mixture?
You can see the different substances in it
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