Scientific method
Can a theory ever become a law?
No
What is the dependent variable?
The variable that is measured
What is a graph?
A chart used to compare and measure different items/things
No
What is kinetic energy?
The energy of movement
What is an Observation?
It means to use your five senses to gather information
What is the independent variable?
The variable that gets manipulated
What is a bar graph?
A graph used to compare items or events
What is a chemical property?
Can’t be observed or described without changing it
During a state change, does the density of a substance change?
No, the volume will change but the mass will never change
What is an inference?
A logical conclusion
What is a controlled variable?
The variable kept constant/doesn’t change
What is a line graph?
A graph that compares an item over time
What is matter?
Anything that takes up space/has mass
What state of matter has the most kinetic energy?
Gas
Why do scientists use models?
If the thing their testing is too big, small, or time consuming ex: testing how the gravity on the moon would affect growth.
What is the experimental group?
The group that is changed and measured
What is a pie chart?
A chart used to compare a percentage of an item compared to others.
Whart is a physical property?
Characteristics you can observe and measure without changing it
Are phase changes physical or chemical properties?
Physical
What is science?
A way of learning about the natural world based on evidence and logic
Max thought that if you played classical music next to a tomato plant for 6 hours, it will grow more tomatoes. What is the dépendant variable?
The number of tomatoes grown on the plant
In what graph do you need a key/legend?
A Pie chart
What is the law of conservation of mass?
It states that mass can never be lost in a volume
When holding an ice pack, explain why your hand gets cold?
Thermal energy leaves your hand to heat up the ice pack because its trying to make the amount of thermal energy equal, so with less thermal energy in your hand it gets cold.