Scientific Method
What is the first step of the scientific method?
State the problem
1. Which phase of matter has the most energy?
2. Which phase of matter has the least energy?
1. Gas
2. Solid
What is the phase change of a solid to a liquid?
Melting
Is matter just anything you can see?
No
Breaking glass
Physical Change
What is the last step of the scientific method?
Form a conclusion/Retest
Which phases of matter take the shape of their container?
Liquids and gasses
Phase change of a gas to a liquid.
Condensation
What is a prediction that can be tested?
Hypothesis
Burning Leaves
Chemical Change
If someone recorded the temperature outside, what is the person making?
An observation
Which phase of matter has a definite shape and a definite volume?
Solid
Vaporization at the surface of a liquid.
Evaporation
The faster the molecules are moving the __________ the temperature.
Higher
1. Mold growing on bread
2. Ice melting
1. Chemical Change
2. Physical Change
Mrs. Hurd wants to know how the amount of sunlight affects her plants' growth. She places three plants in three different locations throughout her classroom: a sunny windowsill, the corner of the room, a dark closet. All plants receive the same amount of water and the same amount of soil.
1. What is the independent variable?
2. What is the dependent variable?
1. Amount of sunlight
2. Plant's growth (height)
What phase of matter has a definite volume but not a definite shape?
Liquid
The temperature at which a liquid changes into a solid?
Freezing Point
1. What part of the experiment changes?
2. What part of the experiment stays the same?
1. Variable
2. Control
1. What is the amount of matter in an object?
2. What is the unit used to measure this property?
1. Mass
2. Grams
1. What type of data involves numbers?
2. What type of data involves descriptions of colors?
1. Quantitative
2. Qualitative
What is needed to cause the particles of a substance to move faster?
Heat energy
Phase change of a solid directly to a gas.
Sublimation
What is the melting point, freezing point, and boiling point of water?
0 degrees Celsius, 0 degrees Celsius, 100 degrees Celsius
1. What is the amount of space an object takes up?
2. What unit is used to measure that property?
1. Volume
2. Liter