Scientific Method
From what you have learned this year, what is the first step of the scientific method?
Observation
What is the smallest unit of matter?
atom
The brain is divided into how many lobes?
4
State two characteristics of a biotic factor/thing.
Made of at least one cell, uses energy, reproduces, grows, responds to stimuli
How many MOLECULSES are in the following formula?
2Fe2O3
2
In a scientific experiment, what is the variable that is being changed by the scientist? (state full term)
Independent Variable
How many ELEMENTS are in the following formula?
CO2HO6
3 (C, O, H)
What is a stimuli?
Change in the environment
If you put your hand on a hot stove, what direction would the thermal energy travel?
stove to hand
What is the average amount of seeds on a raspberry? (give a range)
100-120
A scientist wanted to study which brand of shoe middle school students wore the most. What would be the independent variable in this study?
brand of shoe
Complete the sentence: The law of conservation of mass/matter states that matter cannot be...
created or destroyed
What are the 2 divisions of the nervous system?
Central Nervous system and Peripheral Nervous System
Fill in the blank: The Earth's lithosphere (crust & upper mantle) is divided into _________ ________ that move around and cause natural disasters.
tectonic plates
What parts of out body receives information from the outside environment?
nose, ears, mouth, skin, eyes
A scientist wanted to study which brand of shoe middle school students wore the most. If you were to make a graph of this data, what would the X and Y axis of the graph be labled?
X axis- brand of shoe
Y axis- number of students who wore the shoe
The following is the chemical formula for photosynthesis:
6CO2 + 6H2O --> C6H12O6 + 6O2
Is this process an example of a chemical or physical change AND explain how you know this.
Chemical change. Reactants changed into different products.
When someone tastes something bad, state the receptor, control center, and the effector.
Receptor: mouth
Control center: brain
Effector: spit food out
What is the chemical formula for photosynthesis? (you can write it as words, not chemical symbols)
water + carbon dioxide + (sun) --> sugar + oxygen
You will find me in Mercury, Earth, Mars, and Jupiter, but not in Venus or Neptune. What am I?
The letter R
From what you have learned this year, list all of the steps of the scientific method, in order. (6 or 7steps)
Observation, Question, (Research), Hypothesis, Experiment/Procedure, Analysis, Conclusion
What causes the pressure to change in a firework? How does this pressure change affect the movement of the molecules?
Heat. Increases the motion and speed of the molecules. (This causes the firework to shoot up onto the air and explode)
List all of the body systems we are studying in class. (6 systems)
Nervous system, Digestive system, Respiratory system, Circulatory system, Muscular System, Skeletal system
Fill in the blank: Weather events, such as rain and snow, occur when two _____ _______ of different densities come together.
air fronts
If a banana had a chemical formula, what would it be?
BaNa2