Science
What gas do plants take in from the air to make their food during photosynthesis?
Carbon dioxide
What device do people use to type letters, numbers, and commands into a computer?
A keyboard
What do we call a person who designs buildings?
An architect
What is an engineer?
A person who designs and builds things.
325 × (2 ÷ 5) = 325 × 0.4
130 students
Which part of the plant absorbs water and nutrients from the soil?
The roots
What part of the computer shows pictures, videos, and text?
The monitor
What is a drawing that shows the design and layout of a building before it is built?
A blueprint
What simple machine is a long bar that helps lift heavy objects using a pivot point?
A lever.
48 ÷ (6 × 2) + 7 =
11
What force pulls objects toward the center of the Earth?
Gravity
What does “Wi-Fi” allow devices to do?
Connect to the internet without using wires.
What part of a building supports the structure and holds it up from the ground?
The foundation
What do we call the first model engineers build to test their idea?
A prototype
A rectangle has a perimeter of 54 cm. Its length is 15 cm. What is its width?
12 cm
Water can exist as a solid, liquid, or gas. What are these three forms called?
The states of matter
What type of technology stores files and data online so you can access them from different devices?
Cloud storage.
What is a curved structure used in buildings and bridges that can support weight above it?
The arch
Which type of energy do engineers often use to make machines move?
Mechanical energy, electricity, or fuel energy.
A rectangle has a length that is 4 times its width. If the perimeter is 50 cm, what are the rectangle’s dimensions?
Width = 5 cm, Length = 20 cm
Why do we see lightning before we hear thunder during a storm?
Light travels much faster than sound.
What is a program or set of instructions that tells a computer what to do?
Software (or a computer program)
Why do architects sometimes build models of buildings before construction starts?
To test and show what the building will look like and how the design will work.
Why is it important for engineers to test their designs before building the real thing?
To make sure it works correctly and safely.
A rectangular prism has a length of 12 cm, a width of 5 cm, and a height of 8 cm. What is its volume in cubic centimeters?
480 cm³