Science 7 Review

Science 7 Review

7th Grade

20 Qs

quiz-placeholder

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Science 7 Review

Science 7 Review

Assessment

Quiz

Science

7th Grade

Medium

Created by

Analie Alcazar

Used 11+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between pure substances and mixture?

A mixture is always heterogeneous while a pure substance is always homogeneous.
A sample of mixture may have two or more phases (heterogeneous) while pure substance always has a uniform phase.

The boiling point of a pure substance may vary while the boiling point of a mixture is constant.

Pure substances can be separated physically while mixtures can't be.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a heterogeneous mixture?

sand in water
mango shake
coffee grounds
salt and water solution

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many significant figure are present in 0.000 560 400 miles?

4 SF
6SF
8SF
9SF

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an extensive property?

My hair is longer now than the past few months.
My hair color is black.
My hair is shiny.
My hair smells sweet.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Your group is assigned to measure the length of a block of wood. Your individual measured values are 10 cm, 10.5 cm, 9.90 cm, and 10.3 cm. Your teacher revealed the correct measurement which is 10.0 cm.

In terms of accuracy and precision, your individual measurement is ______.

accurate and precise
accurate but not precise
not accurate but precise
neither accurate nor precise

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In a solution, this component is usually the one with a lesser amount.

solvent
solution
solute
mixture

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Calculate the given operation and express the final answer in proper significant figures:

750 kg / 60 kg

12.5

13

1

10

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