Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
30 Cards in this Set
- Front
- Back
|
Write the 6 steps of the scientific method IN ORDER
|
Ask a question, form a hypothesis, test the hypothesis, analyze results, draw a conclusion, communicate results
|
|
|
Define matter.
|
everything around us (anything with mass that takes up space)-includes solids, liquids and gases
|
|
|
What is a physical property?
|
Something that you can see or measure
|
|
|
List 2 chemical properties.
|
flammability, reactivity
|
|
|
List 6 physical properties.
|
Texture, color, shape, volume, mass, density, melting point, boiling point, freezing point, weight, flexibility
|
|
|
What is a physical change?
|
A change where the substance does not change.
|
|
|
List 2 examples of physical changes.
|
Smelly socks (still socks, just smelly ones), painting a car (still a car), ripping paper in half
|
|
|
What is a chemical change?
|
A change where a new substance is formed
|
|
|
List 2 examples of chemical changes.
|
Rust on a car, baking cookies or cakes, burning paper, burning a pencil
|
|
|
Define mass.
|
The amount of matter something has.
|
|
|
Define volume.
|
The amount of space something takes up.
|
|
|
Define length
|
The distance between two points.
|
|
|
What is the SI unit for mass?
|
Gram (g)
|
|
|
What is the SI unit for volume?
|
Liters (L) or cubic meters (m3)
|
|
|
What is the SI unit for length?
|
Meters (m)
|
|
|
How do you measure volume?
|
Using a ruler or a graduated cylinder
|
|
|
How do you measure mass?
|
Using a triple beam balance
|
|
|
Define temperature.
|
How fast molecules are moving.
|
|
|
Define pressure.
|
The number of collisions between molecules.
|
|
|
Describe the relationship between temperature and pressure. (What happens when temperature goes up?)
|
When temperature goes up, pressure goes up.
|
|
|
Describe the relationship between temperature and volume. (What happens when temperature goes up?)
|
When temperature goes up, volume goes up.
|
|
|
What happens at absolute zero?
|
Molecules completely stop moving. 0 K is the temperature that this happens at
|
|
|
What is the formula for density?
|
Mass divided by volume.
|
|
|
What is the density of oil with a mass of 4000 g and a volume of 5000 mL?
|
4/5 g/mL (0.80 g/mL)
|
|
|
What is the density of a cube of dry ice with a mass of 231 g and a volume of 300 mL?
|
231 divided by 300 = 0.77 g/mL
|
|
|
What is the density of water?
|
1 g/mL
|
|
|
What happens to an object when it is placed in a pool and the object has a density of 9 g/mL? Why?
|
It sinks because its density is higher than 1 g/mL (which is what water is)
|
|
|
What happens to an object when it is placed in a pool and it has a density of 0.8 g/ml?
|
It floats because its density is lower than 1 g/mL
|
|
|
Is oil more or less dense than water? Why?
|
Less dense because it floats in water
|
|
|
If an object floats in water is it more or less dense than water?
|
It is less dense than water.
|
