OSAS Science Grade 5 Practice Questions - Oregon Statewide Assessment System - Science, Grade 5 Exam - OSAS Science Grade 5 Practice Questions - Oregon Statewide Assessment System

Question 1

A student places 50 grams of baking soda and 100 grams of vinegar in a sealed plastic bag on a balance. The total mass reads 150 grams. After the substances mix and the bag inflates with gas, the student reads the balance again. What is the most likely total mass?

Less than 150 grams, because gas is lighter than liquid 150 grams, because matter is not created or destroyed in a closed system More than 150 grams, because a new substance was made Zero grams, because the bag is full of gas

Correct Answer:

150 grams, because matter is not created or destroyed in a closed system

Question 2

A student records the mass of an ice cube as 25 grams. After the ice melts into liquid water, the student measures the mass of the water. Which result best supports the idea that melting is a physical change that conserves matter?

The water has a mass of about 25 grams The water has a mass of about 50 grams, because liquid is heavier than solid The water has a mass of about 10 grams, because some matter was lost The water has a mass of 0 grams, because ice turns into nothing

Correct Answer:

The water has a mass of about 25 grams

Question 3

A student observes four changes. Which observation provides the best evidence that a chemical change has occurred?

A piece of chalk is broken into smaller pieces An ice cube melts into a puddle on a table A steel nail left outside forms reddish-brown rust over several days Sugar dissolves in warm water, making the water taste sweet

Correct Answer:

A steel nail left outside forms reddish-brown rust over several days

Question 4

A student stirs a spoonful of sugar into a glass of water. The sugar seems to disappear, but the water tastes sweet. Using the particle model of matter, which explanation best describes what happened to the sugar?

The sugar particles were destroyed by the water The sugar particles spread out and mixed with the water particles, becoming too small to see The sugar particles changed into water particles The sugar particles evaporated into the air instantly

Correct Answer:

The sugar particles spread out and mixed with the water particles, becoming too small to see

Question 5

An astronaut has a mass of 60 kilograms on Earth. The astronaut travels to the Moon, where gravity is weaker. Which statement is correct?

The astronaut's mass and weight both stay the same on the Moon The astronaut's mass stays the same, but the weight decreases on the Moon The astronaut's mass decreases, but the weight stays the same on the Moon Both the astronaut's mass and weight decrease on the Moon

Correct Answer:

The astronaut's mass stays the same, but the weight decreases on the Moon

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About this Exam

Prepare with the OSAS Science Grade 5 Practice Questions - Oregon Statewide Assessment System - Science, Grade 5 Exam practice quiz. This question bank includes 100 questions covering student, describes, water, energy, and explanation. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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OSAS Science Grade 5 Practice Questions - Oregon Statewide Assessment System - Science, Grade 5 Exam

This practice set contains 100 questions from the matching question bank and focuses on student, describes, water, energy, and explanation. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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OSAS Science Grade 5 Practice Questions - Oregon Statewide Assessment System - Science, Grade 5 Exam

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