What is the engineering design process?
The engineering design process are the steps engineers follow when creating solutions to solve a problem
Draw and explain Earth’s place in the Universe.
Our Earth is in the Solar System which is in the Milky Way Galaxy which is in the Universe.
What is the continental drift theory?
Name at least one piece of evidence that supports 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 organisms have been found on different continents.
What are the 5 things ALL organisms need to be considered a living thing?
Made of cells
Uses energy
Responds to surroundings
Grows and develops
Reproduces
Describe how the human body is organized starting from a cell to an organism
What is density?
Density is how many molecules are packed into a certain space.
What is a mechanical wave?
Give an example of a mechanical wave.
Mechanical waves transfer energy through a substance
Examples:
Sound waves
Water waves
When developing possible solutions to a problem, engineers need to consider the criteria and constraints of their design solution.
What are criteria and constraints?
Criteria = requirements
Constraints = limitations
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.
The closer (less distance) two objects are, the stronger the gravity.
Sedimentary rocks are formed by one layer of rock being added on top of another, over and over again.
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 the oldest rock layers and fossils are on the bottom and the younger rock layers and fossils are on the top.
1. Describe a unicellular organism.
2. Describe a multicellular organism.
1. Unicellular organism - has just ONE cell that carries out all functions of the organism’s life
2. Multicellular organism - has many specialized cells that carry out specific functions
Describe the function of digestive system
The digestive system breaks down food and absorbs nutrients for your body
How can we determine the relative density of different materials?
Materials that are less dense will float on top of materials that are more dense.
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 of the wave’s energy.
Frequency is the speed of the wave
Wavelength measures the distance between waves
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 a drawing.
Prototype - take the drawing and make a physical model
What causes the moon to look different every night?
As the moon moves around the Earth, sunlight hits different parts of the moon - which is the part that we see.
1) What is a fossil?
2) What can fossils tell us about Earth’s past?
1)Fossils are remains or traces of plants and animals that existed long ago.
2)They provide evidence to show how Earth and organisms have changed over time.
Describe the function of the following organelles
Nucleus
Cell Membrane
Mitochondria
Vacuoles
Nucleus: Controls the cell
Cell Membrane: A barrier that protects the cell by controlling what comes in and out of the cell
Mitochondria: Creates energy
Vacuoles: Stores important materials for the cell
Describe the function of the immune system.
The immune system defends your body from disease
How do we calculate the density of an object?
Density = Mass divided by Volume
What happens when a wave is reflected?
When a wave bounces off a new substance (medium)
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. (*Bonus: Get all 5*)
Flexibility
Transparency (see through)
Waterproof
Thermal Conductor or Insulator
Electrical Conductor or Insulator
Draw and 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.
What are homologous structures?
Homologous structures are body parts of different organisms that look similar but often have a different job.
Describe the function of these 3 additional organelles that plant cells have
Cell Wall
One Large Vacuole
Chloroplasts
Cell Wall: Provides structure and support
One Large Vacuole: Stores water
Chloroplasts: traps sun energy to create sugar (food) for the cell
Describe the function of the excretory system.
The excretory system filters toxic waste and gets rid of it
What is a pure substance?
Give one example of a pure substance.
A pure substance cannot be separated into simpler parts.
Examples:
Gold (Au)
Oxygen (O)
Salt (NaCl)
Water (H20)
What happens when a wave is absorbed?
When wave energy gets trapped within a substance
Draw and Describe what happens during a lunar eclipse
During a lunar eclipse, the Earth moves between the Sun and the Moon and blocks most of the sun’s rays from hitting the moon.
Describe the function of the skeletal system.
Describe the function of the muscular system.
Explain how they work together to make your body move.
Skeletal System: Provides protection and support for your body
Muscular System: Allows your body and organs to move
Your muscles from your muscular system pull on your bones from your skeletal system to make your body move
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 (H20 + NaCl)
Air
Milk
What happens when a wave is transmitted?
The wave passes through a substance