WorksheetsSCIENCE 7 PRE-TEST (PART 1)
Total questions: 20
Worksheet time: 20mins
An experimental set up that helps ensure that only one factor is changed while keeping everything else constant.
Conclusion
Fair Test
Hypothesis
Scientific method
Which of the following is NOT a characteristic of liquids?
Liquids take the shape of the container.
Liquids have a definite volume.
Atoms of liquids have high kinetic energy.
Particles of liquids are closely packed.
It is a simple statement that presents a possible solution to problem.
Hypothesis
Interview
Research
Test
It is anything that occupies space and has mass.
Gas
Liquid
Matter
Solid
The process of using the five senses to identify a problem.
Conclusion
Experimentation
Hypothesis
Observation
Imagine you are in a chemistry lab and you need to choose a container for mixing liquids. Which of the following options would you select?
Beaker
Evaporating dish
Petri dish
Test tube holder
It is a container used in laboratories to culture different types of cells.
Beaker
Evaporating dish
Petri dish
Test tube holder
The following are properties of gases EXCEPT for one.
Gases have no definite shape.
Gases do not have a definite volume.
Gas particles are not compressed.
Gases do not have a definite mass.
The variables in the experiment that are observed or measured.
Constant variables
Controlled variables
Dependent variables
Independent variables
A Grade 7 student wants to view cells using a compound microscope with a magnification of 100x. Which of the following objective lenses should be used if the eyepiece 10x?
10x
20x
40x
60x
A group of organisms that can produce their own food.
Consumers
Decomposers
Autotrophs
Scavengers
Outer covering that serves as protection of the cell.
Cell membrane
Endoplasmic reticulum
Mitochondria
Nucleus
Organelle known as the powerhouse of the cell.
Cell membrane
Endoplasmic reticulum
Mitochondria
Nucleus
It controls the amount of light that passes through the specimen.
Iris Diaphragm
Body tube
Objective lenses
Revolving nosepiece
You are asked by your Science teacher to transfer the compound microscope. How will you handle the microscope?
Hold the microscope on the arm with both hands.
Hold the arm with one hand and swing it as you walk.
Hold the eyepiece in one hand and the other hand in the stage.
Hold the microscope on the arm with one hand and the other on the its base.
Rohan was using a microscope in the lab. He noticed a small part that holds the microscope slide in place. What is this part called?
Stage clip
Body tube
Objective lenses
Diaphragm
The component of an ecosystem that refers to the non-living chemical and physical factors that help sustain life.
Abionic
Abiotic
Bionic
Biotic
Which two parts of the compound microscope magnify the image of an object?
Eyepiece and objectives
Eyepiece and mirror
Eyepiece and ocular
Eyepiece and diaphragm
The pigment in plant cells that give plants their green color.
Anthocyanin
Chlorophyll
Carotene
Lysosome
During a biology class experiment, which part of the microscope should Benjamin adjust if the microscope needs to be tilted?
Body Tube
Objective Lens
Inclination joint
Iris Diaphragm
