plant and animal adaptions
food chain
inner and outer planets
force and matter
water cycle
100

Why do cacti have shallow, wide-spreading roots?

To collect water quickly from light rainfalls before it evaporates.

100

What is the primary source of energy for all food chains?

The sun, which plants convert into energy through photosynthesis.

100

What are the 4 inner planets?

Mercury, Venus, Earth, and Mars.

100

What is motion?

Motion is a change in an object's position relative to a reference point.

100

What powers the water cycle?

The sun provides the heat energy necessary for evaporation and sublimation.

200

What is the purpose of thorns on a plant?

To protect the plant from being eaten by animals.

200

Which organism is a producer in a forest ecosystem?

Trees, grass, algae.

200

What are the 4 outer planets?

Jupiter, Saturn, Uranus, and Neptune.

200

What happens when force is applied?

An applied force can cause a resting object to move, a moving object to speed up, slow down, or change direction.

200

Where is most of the Earth's water found?

Over 96% of Earth's water is stored in the oceans, while a significant portion of fresh water is stored as groundwater, icebergs, and glaciers.

300

Why do some trees drop their leaves in the fall?

To conserve water during cold or dry seasons.

300

What do the arrows in a food chain represent? 

The flow of energy

300

What separates the inner and outer planets?

The Main Asteroid Belt. 


300

What is inertia?

It is the tendency of an object to resist changes in its state of motion

300

What is the process of water evaporating from plants?

This is called transpiration, which is similar to human perspiration.

400

What adaptation allows some plants to grow in poor soil?

Carnivorous trapping mechanisms, such as in the Venus flytrap, which obtain nutrients from insects.

400

What is a primary consumer?

An herbivore that eats producers.

400

Which planet is the hottest?

Venus, due to a runaway greenhouse gas effect, despite Mercury being closer to the Sun.

400

What forces act on a resting object?

An object resting on a table has two main forces: gravity and the normal force/support from the table

400

How do clouds form?

Water vapor rises, cools, and condenses around tiny particles in the atmosphere to form clouds.

500

How do hooks or barbs on seeds help with survival?

They attach to passing animals, enabling seed dispersal to new locations.

500

Which organism is a tertiary consumer?

A hawk eating a snake that ate a mouse.

500

What is the largest inner planet?

Earth

500

How are force, mass, and acceleration related?

According to Newton's Second Law, more force is needed to move objects with more mass, and more mass results in less acceleration for a given force.

500

What is the difference between infiltration and runoff?

Infiltration is the process of water soaking into the soil, whereas runoff is water that flows over the land surface into streams and lakes.

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