science
Scientists use skills like
Asking questions and investigating events
why are prototypes important?
To help us understand what we are learning with real life examples
what is a heterogeneous mixture?
A mixture with no uniform appearance
What are the three states of matter?
Solid liquid gas
What is the formula for volume?
V=m/d
Physical science is
Physics and chemistry
What is matter?
Something that occupy space and has mass
What is a homogeneous mixture?
A mixture with uniform appearance
What is evaporation?
A liquid turning into a gas
What is the formula for density?
D=m/v
Who do we ask for help?
Grandma T
Every kind of matter has…
Pure substance and mixture properties
Explain the difference between physical and chemical changes
A physical change changes the appearance. But a chemical change changes the chemical composition
What is condensation?
Change of a vapor to a liquid
What is the formula for pressure?
p=f/a
What is the scientific method?
1. observation 2. Posing question 3. Research
4. forming hypothesis 5. investigation 6. Analysis
7. Conclusions 8. communication
Given an example of pure substances and mixtures
Pure substance: a diamond
mixture: teA
What is the law of conservation of matter?
Fundamental law that says matter cannot be created nor destroyed (also the law of conservation of mass)
What is Boyles law
The volume and absolute temperature of a sample of gas at a consistent pressure inversely proportional
Why do we use graphs
For a visual representation
What is the technology design process?
Step one: preparation
Step two: experimentation
Step three: testing
Step four: final conclusion
What is an element?
A pure substance that consist of atoms with the same atomic number
Name the six forms of energy and give it an example for each
1. Chemical ex. H2O
2.mechanical ex. Car
3. thermal ex. Heater
4. electric ex. Battery
5. light ex. flashlight.
6. nuclear ex. Bomb
What is Charles law?
The volume and absolute temperature of a sample of a gas at a consistent pressure directly proportional
What is the Rutherford gold experiment?
A model of the atom tiny but massive positively charged, and the nucleus is surrounded by electrons most went through but some afflicted