Matter
Heat and temperature
Waves
plants
Ecosystems
100

If the temperature of a balloon decreased how would it change the balloon.

The volume of the balloon would decrease.

100

Which best explains why metals are used instead of plastic to make frying pans?

metals are conductors and transfer heat energy throughout pans. 

100

Wave energy which travels parallel to the disturbance and compression is known as a___.

Longitudinal wave.

100

Which two parts of a flower are required for fertilization.

petal and sepal

100

What do herbivores and carnivores have in common.

They are scavengers.

200

Which best describes the result when two elements combine to form a new substance.

Mixture.

200

Which material would make the best spoon for stirring something hot during the cooking process.

Silver

200

What type of energy is transmitted from the sun to the earth through space.

Heat energy.

200

Where does fertilization take place in a plant?

The flower

200

What would most likely occur if plants from a grassland were placed in the tundra.

The plants would die.

300

Scientists are observing molecules by using an advanced electron microscope and they notice the molecules are beginning to move faster what is most likely happening.

Heat is being added, and a solid is turning into a liquid.

300

Two metal containers full of ice are on a table. Alicia wraps one container with layers of cloth She does not wrap the other containers. What most likely happens?

ice melts at the same time in both containers.

300

A class made a solar cooker out of a large can what color should they paint the can in order to collect the most heat.

Black

300

Why would some plants in a shady region begin to climb or grow over other plants?

to reach sunlight

300

Which is a biotic limiting factor?

competing plant

400

which properties aren't determined by the amount of a substance.

volume and solubility.

400

A boy holds his hand over a lighted electric bulb, not touching the bulb, and his hand feels the heat. which kind of thermal energy transfer is this?

radiation

400

How does the color of a object affect the amount of energy it receives from sunlight.

Dark colored objects absorb more light and become warmer than lighter objects.

400

Which substance is collected by a plant and used in the presence of carbon dioxide and water to synthesize food?

Oxygen.

400

Which would be the most likely reason for rabbits in a grassland to overpopulate? 

Above-average rainfall has increased the growth rate of grass.


500

What is the density of liquid per millimeter.

1 Gram.

500

in order for a material to be effective for cooking, it must have which physical property.

low melting point

500

Which of the following is utilized by the eye to refract light,adjusting sight for both near and far objects.

The lens.

500

Why do plants perform cellular respiration?

to release sugars that can be converted into energy to release sugars that can be converted into energy.

500

What effect would a drought have on plants and animals in a tropical rainforest?

There would be a decrease in plants and an increase in animals that consume plants.

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