A chemical change related to digestion:
A. Food passing from your small intestine into the large intestine
B. Muscles moving your food from your mouth into your stomach
C.Stomach acid breaking down carbohydrates into simple sugars
D. Unused food being stored in the colon before leaving the body
What is C. Stomach acid breaking down carbohydrates into simple sugars
100
What is the teacher's name?
Chase!
200
Name two land formations erosion can make.
Mountains, valleys, beaches, etc.
200
What is weather?
How the atmosphere behaves over a short period of time.
200
What are the four parts of a plant?
Stem, leaf, seed, and root
200
Copper wire cut into pieces
Chemical Change or Physical Change
What is Physical Change?
200
What does a plant eat?
Sugar
300
During the erosion experiment, what type of erosion did the straw represent?
Wind Erosion
300
What is the difference between weather and climate?
Weather is over a short period of time, and climate is over a long period of time.
300
What is photosynthesis?
Process of a plant using energy from the sun to grow and reproduce.
300
An example of a mechanical digestion which involves physical change:
A. Liver releasing enzymes into the digestive tract
B. Saliva breaking down starch into carbohydrates
C. Teeth chewing on a piece of pizza until it is small enough to swallow
D. Proteins being broken down into smaller molecules in the small intestines
What is C. Teeth chewing on a piece of pizza until it is small enough to swallow
300
What do you call it when a seed begins to grow in the soil?
germination
400
In our erosion experiment, which tool caused the greatest amount of erosion?
Ice
400
What type of gases cause climate change (global warming)?
Greenhouse gases
400
What are the three parts of a bean seed?
seed coat, embryo, cotyledon
400
The explosion of fireworks
What is a chemical change?
400
Give me two examples of greenhouse gases.
CO2 (carbon dioxide) and Methane
500
Besides water, wind, and ice, what are 2 other types of erosion forces?
animals/humans, gravity, temperature
500
What is one characteristic of High Pressure?
cold air falls and heats up, makes clear/sunny days, spins clockwise
500
What special cells inside the plant trap in sunlight?
Chlorophyll
500
Identify the 2 physical changes and 2 chemical changes:
At a campsite, branches are cut into small pieces and burned in a campfire. Marshmallows are roasted in the fire. Ice cubes in the cooler near the fire melt.
What is Physical changes: cut branches and melted ice
Chemical changes: burned wood and roasted marshmallows
500
These are giant blocks of ice that move slowly over the Earth's surface.