Unit 1
Unit 3 +2F
Unit 4 +2E
Unit 5 +2C
Unit 6 +2D
Unit 7
100
What is the engineering design process?
The engineering design process are the steps engineers follow when solving or fixing a problem
100
What is the continental drift theory?
Name one piece of evidence that scientists have that support this theory.
The continental drift theory suggests that the continents were once joined together and have moved apart over time.
Evidence:
1 – The continents look like they would fit together like a puzzle.
2 – Fossils of the same ancient organisms have been found on different continents.
100
What is the difference between a multicellular and unicellular organism?
Unicellular- has just ONE cell that carries out all functions of life
Multicellular - has many specialized cells that carry out specific functions
100
Describe the organization of the human body based on complexity.
Cells make up tissue that make up organs that make up organ systems that make up a human body.
100
What is density?
How do we determine relative density of an object?
Density is how tightly packed and heavy matter molecules are in an object.
Less dense objects will float on top of objects that are more dense
100
What are electromagnetic waves?
Give at least 3 examples of electromagnetic waves.
Electromagnetic waves are invisible energy waves that travel around our planet and outer space.
Examples:
light waves
radio waves
microwaves
ultraviolet waves
x-rays
gamma rays
200
Describe the following steps of the Engineering Design Process:
• Research; Design ; Prototype.
Research - gather information to develop ideas.
Design - take the ideas from research and make them into a drawing.
Prototype - take the drawing and make a physical model
200
What does the Law of Superposition tell us about the ages of the rock layers and fossils in sedimentary rocks?
The Law of Superposition explains that because sedimentary rocks are formed by each layer being created on top of the last layer, the oldest rock layers and fossils are on the bottom and the younger rock layers and fossils are on the top.
200
Cells have organelles that allow them to carry out functions of life. Name the 4 key organelles and describe their functions.
Nucleus: Controls the cell
Cell Membrane: Protects the cell
Mitochondria: Creates energy
Vacuole: Stores important substances
200
Name and describe the 3 organ systems that work together for your body to move?
Skeletal System: Provides structure and support for your body
Muscular System: Allows your body to move
Nervous System: Allows your body to communicate and respond to your surroundings
200
How do we calculate the density of an object?
Mass divided by volume
(D = m/v)
200
What is the difference between a mechanical wave and an electromagnetic wave?
Give an example of each.
Mechanical waves need a material to move through (like water waves)
Electromagnetic waves can travel through empty space (like sunlight)
300
What needs to be considered when developing possible solutions to a problem?
Criteria and Constraints
Criteria = requirements of the design
Constraints = limitations of the design
300
What is a fossil and what can they tell us about Earth’s past?
Fossils are remains/traces of past plants and animals that give evidence about the different plants and animals that existed long ago and how Earth has changed over time.
300
What are the 5 things ALL organisms need to be considered a living thing?
Made of Cells
Use or make energy
Responds to surroundings
Grows and develops
Reproduces
300
Name and describe the 2 body systems that work together to move oxygen through your body.
Circulatory System: Moves important materials through your body by your blood
Respiratory System: Allows you to breathe in oxygen and breathe out carbon dioxide - so you can live
300
Why does it look like the moon changes shape each night?
The moon looks like it is changing shape because as it moves around the Earth the sunlight hits it from different angles and makes it seem like it is changing shape.
300
Amplitude, wavelength, crest, and trough are wave features.
Label each of these on the wave below.
400
What is the purpose of providing feedback during the engineering design process?
Providing feedback gives ideas for improvements
400
What are homologous structures?
Homologous structures are body parts of very different organisms that look similar but have a different function.
400
Plant cells have ALL the same organelles as animal cells. Plant cells also have 3 additional organelles.
Name the 3 additional organelles that plant cells have and describe their functions.
Cell Wall: Provides structure and support
One Large Vacuole: Stores water
Chloroplasts: traps sunlight for food energy
400
Describe the function of these 3 organ systems:
Excretory System
Immune System
Digestive System
Digestive System: Breaks down food and absorbs nutrients for your body
Immune System: Defends your body from disease
Excretory System: Filters toxic waste and gets rid of it
400
What is a pure substance?
Give one example of a pure substance.
A pure substance cannot be separated into simpler parts.
Examples:
Salt (NaCl)
Water (H20)
ALL Elements
400
Amplitude , frequency and wavelength are wave features that describe the energy traveling through the wave.
Define each of these wave properties.
Amplitude is the height of the wave that measures the strength/intensity of the wave.
Frequency is the number of waves that occur during a specific period of time.
Wavelength measures the distance between waves (from crest to crest or trough to trough)
500
When engineers are deciding which materials to use in their prototypes, they must consider the material’s properties.
List at least 3 examples of properties engineer’s may consider.
Flexibility
Transparency (see through)
Hard or soft
Waterproof
Thermal Conductor or Insulator
Electrical Conductor or Insulato
500
Describe what happens during a lunar eclipse
During a lunar eclipse the Earth moves between the Sun and the Moon and blocks the sun’s rays from hitting the moon.
500
Describe what happens during a solar eclipse.
During a solar eclipse, the Moon moves between Sun and Earth, and blocks the Sun’s light from hitting Earth.
500
What is gravity?
Describe how mass and distance impact an object’s gravity
An invisible force that pulls ALL objects towards each other
The more mass an object has, the stronger the gravity OR Less mass = weaker gravity
The more distance between objects, the weaker the gravity OR Less distance = stronger gravity
500
What is a mixture?
Give one example of a mixture.
A mixture is 2 or more pure substances combined that can be separated.
Examples of Mixtures:
Salt Water
Air
500
Waves behave differently when they encounter different types of matter (called mediums).
Identify and explain at least 2 wave behaviors.
Reflection is when a wave bounces off new medium
Refraction is when a wave enters a new medium and changes direction and speed (light traveling from air to water)
Absorption is when some of the waves energy is trapped within a medium and the wave is weakened.
Diffraction is when the wave energy bends around an obstacle