1st 9 Weeks

Both Earth and Mars are inside the Sun's habitable zone as shown in the diagram.

While the Earth has life, life has not been found on Mars. Which of the following is NOT a reason that Mars is not able to support life

• Mars lacks water

• Mars has a thin atmosphere

• Mars is not close enough to the Sun

• Mars does not have a protective magnetic field

Currently, the only place in the solar system where known life exists is Earth. In 2018, NASA released information that one of Jupiter's moons might be a good place to seek out possible life. The diagram shows the moon of Jupiter that scientists are referencing. What is the most likely reason that NASA thinks this moon could be a good place to look for life?

• The mood has a probably iron core.

• The moon is similar in size to the Earth's moon

• The moon has a liquid ocean.

• The moon is in the same habital zone as the Earth.

Buzz Aldrin, seen in the picture, was the second man to walk on the moon. In the picture you can see Aldrin in his spacesuit. Which of the following was NOT a reason for Buzz Aldrin to wear his space suit?

• Protection from the cold

• Provides a source of oxygen

• Protection from dust

• A source of food

1. The two most abundant gasses in Earth’s atmosphere are nitrogen and oxygen. Which planet would most likely be able to support life from Earth?

• Planet A

• Planet B

• Planet C

• Planet D

When plant seedlings emerge from the ground, the leaves always grow upwards while the root system grows downward into the ground. What force determines the directional growth of the roots and stems?

• Water

• Wind

• Gravity

• Contact

1. Billy orders a plant for his garden. When it was delivered, the roots and the plant stem were not growing straight out of the clay pot. Instead, the direction of their growth was in a 'sideways' direction. The diagram shows the direction the plant was growing when it was received by Billy. What is the most likely reason for the direction of the plant growth?

• The plant lost turgor pressure and changed it's growth direction

• The plant was laid on it's side inside the package and geotropism caused the plant to change it's growth direction.

• The plant found light through the sealed package and phototropism caused the plant to change it's direction of growth.

• Plants normally grow in strange patterns until they reach a certain age.

A bean plant grown on Earth and a bean plant grown aboard the International Space Station are MOST likely to differ in the —

• color of their leaves

• shape of their root systems

• nutrients they need to survive

• way they respond to direct light

The human heart pumps blood through the body. The heart contracts, increasing the pressure in its valves. This increased pressure causes the blood to flow through the body. There are two types of blood vessels in the body. Arteries are the vessels that carry blood away from the heart, and veins are the vessels that bring the blood back to the heart.

• The vein is carrying blood against gravity.

• Unoxygenated blood is heavier.

• The valves are needed to control carbon dioxide.

Which of these best completes the concept map?

• calcium

• friction

• gravity

• chemical imbalance

A student sets up the investigation shown below. What does the movement of colored water across the sand into the water best model?

• Evaporation of surface water

• Infiltration of groundwater

• Condensation of water vapor

• Pollution of surface water