2025 Science Olympiad Try Out Test

1 .

The heart is divided into ______.

• 4 chambers

• 4 aortas

• 4 valves

• 4 arteries

Which of the following substances contain acid?

• An orange

• Bleach

• Distilled water

• Washing powder

An oak tree is adapted to grow in a wood. Which of the following is NOT true?

• It has a large root system to absorb water and minerals

• It has a large root system to anchor the tree

• It has plenty of leaves to absorb sunlight

• It loses its leaves in autumn to save food

Tags

NGSS.MS-LS1-5

Many woodland birds have adapted short wings. What advantage does this give them?

• Short wings help birds fly quietly

• Short wings help birds fly between trees

• Short wings help birds find more food

• Short wings keep birds cooler in the summer

This is the immune systems’ second line of defense.

• Plenty of sleep

• Exercise

• Healthy eating

• Sneezing

What is the only part of the ocean floor without tectonic activity?

• continental slope

• continental margin

• seamount

• abyssal plain

This functions to form blood, store blood and filter blood. It controls and negates harmful bacteria that has found its way into the bloodstream.

• Hormones

• The spleen

• Immunoglobulins

• Granulocytes

Why is there high salinity in the Mediterranean Ocean?

• precipitation

• evaporation

• volcanoes

• deposition

Sea levels rise when glacial ice caps-

• grow

• melt

• migrate

• hit the Titanic

Tags

NGSS.MS-ESS2-4

Ocean currents are caused by-

• underwater earthquakes

• human influence

• sun moon and Earth interaction

• density differences

Tags

NGSS.MS-ESS2-6