Grade 6 Science – Placement & Skills Evaluation Test

Which organs make up the circulatory system?

• Heart, blood vessels (arteries, veins, capillaries)

• Lungs, trachea, bronchi

• Stomach, intestines, liver

• Kidneys, bladder, ureters

Which gas do humans need to survive?

• Carbon dioxide

• Oxygen

• Nitrogen

• Helium

Why do we need oxygen in our bodies?

• To produce energy in our cells through respiration

• To help digest food in the stomach

• To make our bones stronger

• To keep our skin hydrated

Write ONE example of a reversible change and ONE example of an irreversible change.

• Reversible: Melting ice; Irreversible: Burning paper

• Reversible: Burning paper; Irreversible: Melting ice

• Reversible: Freezing water; Irreversible: Dissolving salt

• Reversible: Cutting paper; Irreversible: Melting ice cream

Salt dissolved in water is an example of:

• Mixture

• Solution

• Gas

• Metal

Which sign shows a chemical change?

• Ice melting

• Paper tearing

• Rust on iron

• Water boiling

Which type of rock forms from cooling lava?

• Sedimentary

• Igneous

• Metamorphic

Fossils are usually found in which type of rock?

• Sedimentary rock

• Igneous rock

• Metamorphic rock

• Granite

Siba is planting a garden in her backyard. She wants to ensure that her plants grow healthy and strong. Why is soil important for the plants she is planting?

• It provides nutrients, water, and support for plants to grow.

• It blocks sunlight from reaching the plants.

• It makes the air around plants colder.

• It prevents plants from absorbing water.

Name ONE factor that affects soil fertility.

• Amount of organic matter (or nutrients, water, pH, etc.)

• Type of sunlight received

• Shape of the leaves on nearby trees

• Color of the sky