Science
What are the three states of matter, and how do the particles behave in each state?
Solid: Particles are tightly packed and vibrate in place.
Liquid: Particles are close together but can move past one another.
Gas: Particles are spread out and move freely.
Which of the following is an example of a simple machine?
A) Television
B) Lever
C) Computer
D) Airplane
B) Lever
You are designing a paper bridge to hold as much weight as possible using only paper, tape, and scissors. Which of the following factors will likely affect how much weight your bridge can hold? Select all that apply
A) The color of the paper
B) The thickness of the paper
C) The length of the tape used
D) The shape and structure of the bridge
B) The thickness of the paper
D) The shape and structure of the bridge
What is the value of the expression below? 24.5 - 15.75=
8.75
Which technology allows for the simulation of real-world environments in a completely immersive, computer-generated experience, often used in gaming, training, and medical applications?
A) Augmented Reality (AR)
B) Virtual Reality (VR)
C) Artificial Intelligence (AI)
D) Internet of Things (IoT)
B) Virtual Reality (VR)
What is the difference between a chemical reaction and a physical reaction, and can you give an example of each?
Chemical Reaction: A process where new substances are formed, and the chemical composition changes. For example, burning wood—when wood burns, it reacts with oxygen in the air to form ash, carbon dioxide, and water vapor.
Physical Reaction: A change in the form or appearance of a substance without altering its chemical composition. For example, melting ice—ice changes from solid to liquid, but the substance (water) remains the same.
How do solar panels work to provide energy?
A) They use wind to generate power.
B) They convert sunlight into electricity.
C) They store energy in batteries.
D) They burn coal to make electricity.
B) They convert sunlight into electricity.
When designing a paper airplane, which of these factors will most affect how far it flies?
A) The color of the paper
B) The shape of the wings
C) The number of folds
D) The weight of the plane
B) The shape of the wings
Which term can be put in the blank to make the statement below true? 3,000,000= 30________
A. thousands
B. ten-thousands
C. hundred-thousands
D. millions
C. hundred-thousands
Penelope made a paper chain that was 6 feet 10 inches long. What was the length, in inches, of the paper chain?
A. 82
B. 72
C. 60
D. 28
B. 82
What happens when an object with a lower mass interacts with an object with a higher mass?
A) The object with the lower mass will experience more force, but both objects will move the same amount.
B) The object with the higher mass will experience a greater acceleration than the object with the lower mass.
C) Both objects will experience the same amount of acceleration.
D) The object with the lower mass will experience a greater acceleration than the object with the higher mass.
A) The object with the lower mass will experience more force, but both objects will move the same amount.
What is renewable energy?
Renewable energy is energy that comes from natural sources that are constantly replenished, meaning they won’t run out.
What should you do after testing your design and finding it doesn’t work as expected?
Improve your design and test again
Mr. Morris built a fence to enclose his yard. He put up 3/4 of the fence on Monday. On Tuesday, he put up 1/6 of the fence, and on Wednesday, he put up the rest of the fence. What portion of the fence did he put up on Wednesday?
1/12
Name two engineering concepts
Force and motion
Energy conversion
Explain the relationship between producers, consumers, and decomposers in an ecosystem and give one example of each.
Producers: Organisms that make their own food using sunlight (e.g., plants).
Consumers: Organisms that eat other organisms for energy (e.g., animals).
Decomposers: Organisms that break down dead or decaying matter, recycling nutrients back into the ecosystem (e.g., fungi or bacteria).
How has the rise of artificial intelligence (AI) impacted industries like healthcare, transportation, and education? Answer in at least three complete sentences.
You designed a ramp using paper, but the object slides down too quickly and crashes at the bottom. What is one way you could improve the ramp design to make the object move more slowly?
Adding friction, such as by using a rougher material or increasing the angle of the ramp.
Which statement is true about the product of 5/12 × 7?
A. The product is greater than each factor.
B. The product is less than each factor
C. The product is greater than 5/12 but less than 7
D. The product is equal to one of the factors.
C. The product is greater than 5/12 but less than 7
When you heat a piece of metal, the metal becomes warmer because:
A) The metal creates its own energy.
B) The heat makes the particles in the metal move faster, transferring energy.
C) The metal absorbs light and turns it into heat.
D) The metal turns into a gas when it gets hot.
B) The heat makes the particles in the metal move faster, transferring energy.
(3) protons and neutrons
This technology is commonly used in smartphones, tablets, and laptops, allowing users to interact with their devices by tapping, swiping, or pinching on the screen.
Touchscreen technology
This branch of engineering is concerned with creating machines, devices, and systems that use electrical energy, including power generation, circuits, and robotics.
Electrical engineering
When factored, the expression x3 - 36x is equivalent to
(A) (x+6)(x-6)
(B) x(x +6)(x -6)
(C)(x+18)(x - 18)
(4) x(x+18)(x-18)
(B) x(x +6)(x -6)
Abby is told that each day there is a 50% chance it will rain. Which simulation can Abby perform to determine the likelihood of it raining for the next seven days?
(1) Flip a coin seven times, count how many heads, and repeat 50 times.
(2) Roll a die seven times, count how many twos, and repeat 50 times.
(3) Roll a pair of dice, count totals of seven, and repeat 50 times.
(4) Flip a coin 50 times and count how many heads.
Flip a coin 50 times and count how many heads.