Lesson 4
All systems have input, ________ , and output.
process
You should keep your lab work area clean and ________.
organized
What happens in a system is called _______.
process
Where are pumpkins native to?
North America
What is another name for Halloween?
All Hallows’ Eve
A(n) _______ model might include a drawing or a three-dimensional object.
physical
Doing good ______ ahead of time helps you stay safe during science investigations.
preparation
Scientists use models to understand things they ______ observe directly.
cannot
What U.S. state produces the most pumpkins each year?
Illinois
Which Halloween candy was originally referred to as chicken feed?
Candy Corn
_________ is a material or energy that goes into a system.
Input
When an accident occurs, the first person you should tell your ______.
teacher
_______ ________ are pictures that alert you to possible sources of accidents in an investigation.
Safety Symbols
What is the scientific name for a pumpkin?
Cucurbita pepo
What vegetable was once thought to have supernatural powers on Halloween?
Cabbage
A(n) _______ is a group of parts that work together to perform a function or produce a result.
system
Be sure to wash your ______ throughly after working in the laboratory.
hands
_____ systems have feedback.
Some
Before pumpkins, which root vegetables did the Irish and Scottish carve on Halloween?
Turnips
Who brought the Halloween tradition to the United States?
The Irish, during the potato famine in the mid-1800s
Output that changes a system in some way is called _________.
feedback
Wear safety ______ to protect your eyes from chemical splashes.
goggles
When they use models, scientists keep in mind that predictions based on models are ________.
uncertain
In 2023, Travis Gienger nabbed the Guinness World Record for the heaviest pumpkin. How much did it weigh?
2,749 pounds
Which first lady was the first to decorate the White House for Halloween?
Mamie Eisenhower, in 1958