Science curricula are constructed so that science topics, and the ...

[arivle123]

Science curricula are constructed so that science topics, and the core concepts associated with them, pop up repeatedly in different grades. This is called ___________________ _curriculum.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

In sinking and floating, some materials can be sinkers and then changed to _____________.
 
  Fill in the blank(s) with the appropriate word(s).

[sierrahalpin]

Answer to Question 1

spiral or spiraling

Answer to Question 2

floaters

[arivle123]

TYSM

[alvinum]

Thanks for the timely response, appreciate it