Scientific Method
What are the 7 steps of the Scientific Method?
Question, Research, Hypothesis, Experiment, Results, Conclusion, Present
What are the three types of variables in an experiment?
Independent, Dependent, Constant
Is mass and weight the same?
No
What is volume?
**Bonus: Give me an example** (+50 pts)
Volume is the amount of space an object takes up.
Bonus: any object really
What is density? Does density depend on the size of the object?
How much MATTER that is packed inside a SPACE.
No
True or false: a hypothesis must be testable and try to answer the scientific question.
True
What are the two groups in an experiment?
Control and Experimental
True or false: Mass is constant. Weight is not constant.
True
What tool do we use to find the volume of a regular cube?
ruler
Density =
**Bonus (+50): What mathematical operation are we doing in this formula?**
mass/ volume
What do you need to set up an experiment?
Materials and Procedure
Identify a constant in this experiment:
A student blows up a balloon to different sizes to see how far it will travel along a string.
type of balloon, color or balloon, the type of string.
Mass is __________. The tool used is a _______. The units are __________.
**Bonus: How do you use a triple beam balance?** (+50 pts)
how much matter that is inside an object, balance, grams (g)
Bonus: Place object on the balance, move poise to hundreds, then tens, the ones. Wait until the balance is in line then add up numbers.
What tool do we use to find the volume of an irregular rock?
beaker, graduated cylinder
What are units for density when using a ruler?
g/cm3
Name two ways you can organize your results.
** Bonus what's the third one?** (+50 pts)
Tables, charts
graphs
A study was done to see how soda affects eggs. One egg was put in a glass of Coco-Cola and the other was put in plain water.
What is the control group? What is the experimental group?
The egg in plain water is the control group, and the egg is coco cola is the experimental group.
Weight is _____________. The tool uses is a ________. The units are __________.
how much gravity pulls on an object, scale, Newtons (N)
Find the volume of this cube. Remember units!
L = 1 cm
W = 1 cm
H = 1 cm
Tool: ruler
Formula: L x W x H
1 x 1 x 1 = 1cm3
What are the units when using a beaker or graduated cylinder?
g/mL
Make a hypothesis: What effect does increasing the amount of water have on plant growth?
If you increase the amount of water, then the plant will grow faster because the plant is getting more nutrients.
Identify the IV and DV in this experiment:
Ms. Noel wanted to see if eating apples would help her do better on her classwork. The first day, she didn’t eat any apples. On day 2, she ate one apple; on day 3, she ate 2 apples; and on day 4, she ate 3 apples. Each day, she recorded the grades she got on her science work.
**Bonus: What could be a constant?** (+50 pts)
IV: The amount of apples eaten each day.
DV: The grades on her classwork.
Constant: the type of apple
Why are astronauts 'weightless' in outer space?
There is no gravity in space and since weight is influenced by gravity, no gravity means your weight is very light.
Find the volume of the ring. Remember units.
Final water level = 20 mL
Initial water level = 10 mL
Tool: Beaker
Formula: final water level - initial water level
20- 10 = 10mL
Calculate the density of this object:
Mass= 20 g
Volume = 5 mL
The object is sinking. Is it more or less dense than water?
D= 4g/mL
more dense