What are we made of?
This is what we are all made of.
What is matter?
This is how many elements there are.
What is 118?
What is the international system of units?
True or false: Labs always have the procedures you did during the experiment.
True
These are the two types of solids.
What are crystalline and amorphous solids?
What is a physical property?
You can see or use your senses and the substance doesn't change
C3H2O4Ne
What is the ratio of Neon (Ne) to Carbon (C)?
What is 1:3?
This states that matter cannot be created or destroyed, but can turn into something new.
What is the law of conservation of mass?
This is what happens if your hypothesis is wrong.
What is try again!
(Drawing)
This is the way that particles in a liquid are organized in a flamingo shaped container.
(Did you draw it correctly?)
Give at least 3 physical properties of a watermelon
-round
-green & red
-heavy
-sweet
This is a substance that can't be broken down and has its own physical and chemical properties
What is an element?
This is how heavy something is for its size and determines what floats.
What is density?
These are the three types of variables in a controlled experiment.
What are control, independent, and dependent variables
This is the way that gases behave.
What are atoms spread apart and hit each other creating pressure?
Draw and label the parts of an atom
must have
protons (+)
neutrons
electrons (-)
**bonus if they labeled the nucleus (100 pts)
These are 3 examples of heterogeneous mixtures.
Answers may vary but they should be mixtures you can see the different parts of. For example, trail mix, cereal, salad
Explain what would happen to your mass and weight if you left Earth and went to the moon.
Mass doesn't change
Weigh less
These are the steps of the scientific method.
1. state the problem
2. gather information
3. form a hypothesis
4. experiment
5. analyze data
6. draw conclusions
7. report
This state of matter has a no definite shape, but a definite volume.
What is a liquid?
Name at least 2 chemical properties
-rust
-flammability
-reactivity
Describe what a compound is.
atoms from different elements combine to make something new!
Calculate this problem. The mass of a cube is 20g and the volume is 5cm3. What is the density?
20g / 5cm3 = 4g/cm3
This is the independent variable in the following experiment:
Mr.Trujillo was trying to grow his own blueberries to feed his bearded dragon. He plants seeds in 5 different cups, with the same soil. They get the same amount of water. The plants are exposed to different colored lights.
What is the different color lights?
This is what happens to the water on the ground when it stops raining.
What is changing states of matter because you increase the energy of the liquid to turn it into a gas?