cups with ___ walls are proven to be much better at keeping drinks cold or hot compared to a single walled cups
double!!
in science a system is a group of interacting parts that form a complex blank
whole
you must only test _ varible
1
a ____ temputure change means the cup is mainetaining its temputure
smaller
the main goal of a well designed cup is to help ___ the temperature of the liquids inside the cup
Manetain
anything outside of the cup such as the ____ desk the cup sits on or the room NOT part of the system
desk
if cup a changes by 1 degree and cup b changes by 8 which one is better at keeping thing hot/cold
A
lids trap heat and air inside the system if a cup with a warm liquid dose not have a lid thermal energy escapes faster causing the drink to ___ down faster
cool
when we study how cups work we must define the boundary's the cup system includes the physical parts of the cup and _____ and ___ trapped inside the cup
water/liquid air