Observation or Inference
What is it called when you gather information using the 5 senses?
observation
How many independent variables should be in a properly controlled experiment?
1
What is the funny sentence that helps to remember the order of the Scientific Method?
Poor hungry men probably ordered chicken soup
What is a series of steps scientists use to solve problems called?
Scientific Method
The temperature of the glass of water near the window is warmer than the glass on the shelf.
The sun must have warmed the water.
The car is green.
Is this an observation or inference?
observation
What is the part of the experiment that remains the same throughout the experiment called?
control group
A student in science class wanted to know how light affected plant growth. The student’s hypothesis was: If a plant is exposed to light, then it will grow taller. The student put two of the same plants in the same kind of pot. The soil in both pots were the same and they were both watered every day. The temperature in both spots were also the same. One plant was placed under a lamp and the other plant was placed in the dark.
Name 2 control factors
plant, water, soil, temperature, pot
What comes before making a hypothesis?
Stating the problem
The milk is cold
The milk must have been in the fridge
Patti sneezed and coughed all night. She felt warm and her head hurt. She called her boss and said she isn’t coming to work.
Patty is not going to work because she is sick. Is this an observation or inference?
inference
What variable is changed on purpose?
independent variable
What are opinions based on observations called?
inferences
What is an educated guess called?
Hypothesis
The tulips are blooming.
It must be spring time.
A man is swimming and a woman is sitting on the edge of the pool.
The woman is afraid of water. Is this an observation or inference?
What is inference?
What is the variable that is measured called?
dependent variable
Name the steps of the Scientific Method in order
problem, hypothesis, materials, procedure, observations, conclusion, source of error
If I give fertilizer to a plant, then it will grow taller. What is this an example of?
hypothesis
It is dark
It must be night
3 boys are around a basketball hoop. There is an orange basketball in one boy's hand and he is facing the hoop. The other two boys are facing him with their arms up. Their backs are to the hoop. They are all smiling.
Name one observation and one inference about this situation
Observations- The ball is orange. The ball is in his hand. The boys have their arms up. They are smiling.
Inferences - The boy is going to take a shot. The two boys are blocking the shot. The boys are friends. They like basketball.
If a plant is exposed to light, then it will grow taller. Name both the independent and dependent variables
Independent variable- the light
independent variable- plant growth
Two part question!
A student in science class wanted to know how light affected plant growth. The student’s hypothesis was: If a plant is exposed to light, then it will grow taller. One plant was placed under a lamp and the other plant was placed in the dark. After two weeks, the plant in the light grew 3 inches high and the plant in the dark grew 1 inch.
What is the conclusion of this experiment?
Did the conclusion agree with the hypothesis?
Plants grow better in light
yes
Fill in the blank
Scientists use instruments to collect _________Data
The clouds are very dark.
It is going to rain soon