Matter
All matter can be grouped into 3 states...
solid, liquid, gas
In order of the strength of attractive forces (strongest to weakest), the states of matter are
solid, liquid, gas
We can only compare the densities of solids using mass when the objects have approximately the same _________
We can only compare the densities of solids using mass when the objects have approximately the same VOLUME
Another term for a manipulated variable is...
An independent variable
What is a lab?
An experiment or test that is done to learn something new about the world
Matter is anything that has ________ and _________
Matter is anything that has MASS and VOLUME
What are attractive forces?
forces that pull something near, or attract something
In the density column experiment, the dish soap sank to the bottom because it has a _______ density
High
A variable that is changed to determine what effect the change will have on the responding variable in a controlled environment.
Manipulated (independent) variable
What is the scientific method?
a process that scientists use to explore and find answers to their questions
The tiny building blocks that make up matter are called...
Particles
The stronger the force of attraction, the ________ the particles will be
The stronger the force of attraction, the CLOSER the particles will be
Density is the comparison of the ______ of a solid, liquid or gas to its _________
Density is the comparison of the MASS of a solid, liquid or gas to its VOLUME
An investigation in which one variable is changed and all other variables are kept the same is called a ____________________
controlled experiment
Doing research, or learning more about a topic will help scientists to form this
a hypothesis
This is the smallest part of matter. It is so small, you can't even see it with the best microscope
Atoms
Attractive forces affect both the __________ and __________ of particles
Attractive forces affect both the ARRANGEMENT and MOVEMENT of particles
Gases are generally ______ (less or more) dense than liquids because they have _______ (less or more) matter in a given volume.
Gases are generally LESS dense than liquids because they have LESS matter in a given volume.
If one plant is placed near a window with sunlight and the other in a dark cupboard, but both are watered the same amount, what is a controlled variable in the experiment?
Water
In which step of the scientific method do you use your information to draw conclusions about your experiment?
Analyze Results
What are the atoms that make up a water molecule?
2 hydrogen atoms, 1 oxygen atom
Why are attractive forces important?
Because without attractive forces, particles would not be held together and condensed states of matter such as solids and liquids would not exist
What is an example of a solid that is less dense than a liquid?
Solid water (ice) is less dense than liquid water!
Miss Schultz wanted to do an experiment to test the conditions to keep plants alive. She bought 2 of the same plant and brought one to school and left one at home. At school she watered the plant with filtered water. At home she watered the plant with tap water. She gave the plants the same amount of water and watered them on the same day.
What is wrong with her experiment?
She's changing too many variables! You can only have ONE manipulated (independent) variable, or else you won't know if it's the location or the type of water that's affecting the plant's growth.
List all 6 steps of the scientific method in the correct order
1. Observation & Question
2. Research
3. Hypothesis
4. Experiment
5. Analyze Results
6. Conclusion