Martin is making a salad. He includes lettuce, tomatoes, onions, and carrots. Describe Martin's salad scientifically.
What is a mixture?
100
Study this food chain
grain > mouse > hawk
Name the producer
What is grain
100
Chemical weathering is caused by:
sedimentary rock
wind and plants
acid rain
decomposers
What is acid rain?
100
While Earth is moving around the sun, it is also rotating on its axis.Earth's axis is tilted at an angle. Because of this tilt.....
What are seasons?
100
Warm blooded vertebrates with hair or fur on part of their bodies; females produce milk to feed their young.
What are mammmals ?
200
Kya's mom burns some logs in the fireplace. Two forms of energy are released by the burning logs.
What is heat and light?
200
Interprets messages the body receives and responds to them
What is the nervous system
200
Rain washes away a sand dume.
What is erosion?
200
The changing appearance of the moon as seen from Earth,determined by the portion of the moon visibly illuminted by the sun.
What are the moon phaes?
200
Cold blooded animals that have backbones and are able to live on land and in water.
What are amphibians?
300
Gabriel's mother makes some soup for lunch. Gabbriel gets a bowl from the cupboard and her mom fills it with two large ladles of soup. As Gabriel carries the bowl to the kitchen table, the bowl begins to feel warm.
What is energy transfer
300
In human beings these cells help form an outer layer that protects the human body.
What are skin cells
300
Because of Earth's rotation on its axis, sunrises and sunsets we have.....
What is day and night
300
The name for the sun and all the objects in orbit around it.
What is the solar system?
300
Cold blooded animals with backbones and dry, scaly skin; most live on land, breathe with lungs and lay eggs.
What are reptiles?
400
Circuit in which an electric current moves in only one path.
What is a seris circuit/
400
In an ecosystem, when an animal dies, its remains are broken down.
What are decomposers
400
Light and heat from this sphere of extremely hot gases are Earth's main source of energy.
What is the sun?
400
The third planet from the sun ,is the only planet where life is known to exist.
What is Earth?
400
In parts of the Northwestern United States, logging is destroying many forests. These forests are home to the spotted owl. Many people worry that logging will result in the loss of these animals.
What is extinction?
500
Ming's class observed how baking soda reacts when combined with vinegar. The class noticed bubbles formed when Ming dropped vinegar onto the baking soda.
What is chemical change?
500
The process by which plants produce their own food.
What is photosynthesis?
500
The breakdown of rocks through the forces of wind,water, or ice.
What is weathering/
500
Small fragments of rocks falling through space.
What are asteroids?
500
Bears live in many different environments. The color of their fur varies from white to black. Polar bears have fur that appears white and live in cold arctic areas. Black bears have dark fur and live in forest.