Water Cycle
The water cycle is driven by the_____.
sun
What is energy?
The ability to cause change or do work.
Is melting ice a physical or chemical change?
Physical change
What happens to particle motion when temperature increases?
Particles generally move faster.
A student burns a piece of paper. How do we know this is a chemical change?
New substances such as ash and gases are produced.
What is matter?
Anything that has mass and takes up space.
Plants contribute to the water cycle through this process.
transpiration
What happens to particle motion when thermal energy is added?
The particles generally move faster.
Is burning wood a physical or chemical change?
Chemical change
Are particles in matter always moving?
Yes
A student tears a piece of paper into smaller pieces. Has the substance itself changed?
No. It is a physical change because the paper is still paper.
What are the three common states of matter?
Solid, liquid, and gas
Name two forms of precipitation.
rain, hail, sleet, and snow.
The transfer of thermal energy through direct contact.
What is conduction
What is one clue that a chemical change may have occurred?
Formation of a gas, color change, temperature change, light production, odor change, or formation of a precipitate.
Which state has particles that are farthest apart?
Gas
A puddle of water disappears on a hot day. What process is occurring?
Evaporation
How are particles arranged in a solid?
They are packed closely together and vibrate in place.
What is is called when water flows over the land into a lake/pond/river/ocean?
Runoff
The transfer of thermal energy through the movement of fluids, such as liquids or gases.
What is convection
Is dissolving sugar in water a physical or chemical change?
Physical change
What is the particle model of matter used to explain?
How particles are arranged and how they move in different states of matter.
If particles in a substance begin moving faster, what has most likely happened to its thermal energy?
Its thermal energy has increased.
What happens when a solid melts?
It changes from a solid to a liquid.
This is is the process of water being soaked into/moving through the ground
infiltration
Why does a metal spoon become hot when placed in hot soup?
Thermal energy is transferred through the spoon by conduction.
A student mixes two substances and bubbles form. What might this indicate?
A chemical change may have occurred because a gas was produced.
A student heats water and notices steam forming. What happened to the particles?
They gained thermal energy and moved faster, allowing the water to change into a gas.
Why is runoff an important part of the water cycle to study in Jasper County?
Runoff can move water and pollutants across land and into local waterways while also affecting how much water is available for community use.
What happens when a liquid evaporates?
It changes from a liquid to a gas.