Sticky Ingredients
This word means how something feels, looks, or smells
Property
A single thing used in a recipe, like flour or cornstarch.
ingredient
The people who solve problems by making things are called this
engineer
When you make something hotter, you are doing this.
heating
The word for information you use to show why your idea is right is this.
evidence
The property we care about most for this glue project — it helps things stick together.
sticky
When you mix two or more ingredients together you make this.
a mixture
The first thing engineers decide before designing is what they want the product to do. This is called a?
design goal?
If a change can go back to the way it was after heating and then cooling, it is called this
a change that can be reversed.
A short answer you give to a question, like "Yes" or "No" about whether two glues are the same, is called this in science writing.
claim
A glue that holds a lot without breaking is said to be this.
strong
Name one ingredient from the unit that might change when heated and then stay different when cooled
cornstarch and water
The three-step cycle used in this unit is Learn—Plan and?
test
Name one ingredient from the unit that might change when heated and then stay different when cooled
cornstarch and water
After testing glue with a bean, students asked: "Did the bean stick or fall off?" That test result is an example of this.
evidence
If a glue dries and you can see through it, we say it is this colorless word.
Clear
If heating makes a new substance that cannot return to the original, that is called this.
irreversible change
When engineers try something, test it, and then change it to make it better, that repeated process is called this
what is iteration?
If heating makes a new substance that cannot return to the original, that is called this.
a change that cannot be undone
"Glue A is thicker than Glue B" and then list what you observed, you are doing this scientific practice.
supporting a claim with evidence
Name two senses you can use to observe a glue’s properties (not taste).
sight, touch, smell, sound
which mixture was the best for glue?
heated water and flour
sticky and strong
Explain in one short sentence why heating might make a mixture behave differently
heating can change how an ingredient looks or feels.
when supporting your claim with evidence. How many pieces of evidence do you need?
2 pieces of evidence