Which of these is true of fruits blended together?

Question

(1 point)
Responses

physical change
physical change

both types of changes
both types of changes

chemical change
chemical change

none of these
none of these
Question 2

Gallium spoon melting is a physical change because a puddle of _____ metal is left afterwards.

(1 point)
Responses

steel
steel

iron
iron

aluminum
aluminum

gallium
gallium
Question 3

Changes between states of matter are often which?

(1 point)
Responses

physical changes
physical changes

chemical changes
chemical changes

neither
neither

both
both
Question 4

When something burns it is which of these?

(1 point)
Responses

chemical change
chemical change

physical change
physical change
Question 5

What caused the candles to go out?

(1 point)
Responses

Izzy blowing on them
Izzy blowing on them

carbon dioxide
carbon dioxide

hydrogen
hydrogen

oxygen
oxygen
Question 6

Why is this a physical change?

(1 point)
Responses

it changes form
it changes form

same gas before and after
same gas before and after

it makes a mess
it makes a mess

it's not, it's a chemical change
it's not, it's a chemical change
Question 7

How does the team know the gas produced is hydrogen?

(1 point)
Responses

flame test
flame test

temperature
temperature

density
density

direct observation
direct observation
Question 8

How does hydrogen react in a flame test?

(1 point)
Responses

changes color
changes color

nothing happens
nothing happens

a pop
a pop

puts flame out
puts flame out
Question 9

The spoiling of milk is an example of which type of change?

(1 point)
Responses

neither
neither

both
both

chemical
chemical

physical
physical
Question 10

Is mixing air into egg whites a physical or chemical change?

(1 point)
Responses

both
both

chemical
chemical

physical
physical

neither
neither
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Answer 1

Here are the answers to your questions:

Question 1: Which of these is true of fruits blended together?

• Response: physical change

Question 2: Gallium spoon melting is a physical change because a puddle of _____ metal is left afterward.

• Response: gallium

Question 3: Changes between states of matter are often which?

• Response: physical changes

Question 4: When something burns it is which of these?

• Response: chemical change

Question 5: What caused the candles to go out?

• Response: Izzy blowing on them

Question 6: Why is this a physical change?

• Response: it changes form

Question 7: How does the team know the gas produced is hydrogen?

• Response: flame test

Question 8: How does hydrogen react in a flame test?

• Response: a pop

Question 9: The spoiling of milk is an example of which type of change?

• Response: chemical

Question 10: Is mixing air into egg whites a physical or chemical change?

• Response: physical

Feel free to ask if you need help with anything else!