Thermal Energy
What happens to the liquid in a thermometer when it is cooled?
What is it contracts?
Why do car tires sometimes go flat on very cold days?
What is contraction?
Why do bridges have small gaps in them?
What is to allow room for expansion and contraction?
What happens to the liquid in a thermometer when it is heated?
What is it expands?
When a liquid turns into a solid?
What is freezing?
What is the main source of thermal energy for Earth?
What is the Sun?
When you cool something down, do materials get bigger or smaller?
What is smaller?
When you heat a metal rod, does it get longer or shorter?
What is longer?
Which has more thermal energy: a bathtub of warm water or a cup of boiling water?
What is a bathtub of warm water?
This is when a solid turns into a gas with becoming a liquid first?
What is sublimation?
What happens to particle movement when something gets hotter?
What is Particles move faster?
What happens to particles when thermal energy is removed?
What is they move slower and get closer together?
What happens to the particles in a substance when it is heated?
What is they move faster and spread out?
What is the process where materials shrink when they cool down?
What is thermal contraction?
What is it called when a gas turns into a liquid?
What is condensation
What do we call it when a material gets larger due to heat?
Thermal expansion
A concrete road cracks on a cold night. What caused this?
What is thermal contraction as the concrete cooled?
Railroad tracks have spaces between them. Why?
What is so they can expand when heated without buckling or warping?
If you pour cold milk into a warm bowl, which direction does heat flow?
From the bowl to the milk.
What is it called when a liquid turns into a gas?
What is evaporation?
What direction does thermal energy travel? Hot to cold or cold to hot?
What is hot to cold?
What happens to particles when thermal energy is removed?
What is they move slower and get closer together?
If a balloon is filled with air on a hot day, what will happen to it on a cold night?
What is it will contract?
What is the energy that flows from a hot object to a cold object?
What is heat?
What a solid turns into a liquid is called?