Space Science
How many planets are in our solar system? (do not include Pluto)
8
State one difference between DNA and RNA.
Different sugars, double vs single strand, T vs U
From what you have learned this year, what is the first step of the scientific method?
Observation
State two characteristics of a biotic factor/thing.
Made of at least one cell, uses energy, reproduces, grows, responds to stimuli
What is the smallest unit of matter?
atom
Which set of planets are known as gas giants, have rings, and tend to be larger?
Outer planets
Genetic change in a population over generations.
In a scientific experiment, what is the variable that is being changed by the scientist? (state full term)
Independent Variable
If you put your hand on a hot stove, what direction would the thermal energy travel?
stove to hand
How many ELEMENTS are in the following formula?
CO2HO6
3 (C, O, H)
What is the main reason we have seasons on Earth?
Tilt of the Earth on its axis
State 3 pieces of evidence to support the theory of evolution.
Fossils, Comparative Anatomy, Embryology, DNA
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
Fill in the blank: The Earth's lithosphere (crust & upper mantle) is divided into _________ ________ that move around and cause natural disasters.
tectonic plates
What is a stimuli?
Change in the environment
What would be the order of our Moon, Sun and Earth during a solar eclipse?
Sun, Moon, Earth
State the 3 steps to create a protein.
DNA, RNA, Protein
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
What is the chemical formula for photosynthesis? (you can write it as words, not chemical symbols)
water + carbon dioxide + (sun) --> sugar + oxygen
Complete the sentence: The law of conservation of mass/matter states that matter cannot be...
created or destroyed
If a planet is 24,000 miles long, how many cm long would it be if you scaled it down in size?
Scale: 2,000 miles = 1 cm
12 cm
List 3 principals of natural selection
Variation, Heredity/Inheritance, beneficial trait
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
Fill in the blank: Weather events, such as rain and snow, occur when two _____ _______ of different densities come together.
air fronts
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.