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WorksheetsTMSCA Science
Total questions: 15
Worksheet time: 15mins
________________ for a chemical reaction to occur.
New bonds must form
Chemical bonds must break
Atoms must rearrange
A, B, and C must happen
All algae _____________.
are autotrophs
are unicellular
are multicellular
live in colonies
_____ current is used in homes because it is more practical for transferring electrical energy.
Photonic
Thermic
Alternating
Direct
Any form of water that falls from clouds is called ___________________.
dew
evaporation
condensation
precipitation
An example of a short-day plant is ___________________.
a poinsettia
a clover
spinach
lettuce
Bile is produced by the ______________________.
liver
gallbladder
pancreas
stomach
____________ are the most abundant cells in the blood.
white blood cells
red blood cells
plasma
platelets
The ocean prevents the Australian kangaroo from dispersing throughout the world. The ocean is an example of which limit to dispersal?
climate
physical barrier
competition
an exotic species
In which groups of animals does imprinting occur?
sponges and cnidarians
reptiles and amphibians
birds and mammals
crustaceans and arachnids
What is the chemical formula for water?
H2O
CO2
O2
CH4
Which of the following is a renewable energy source?
Coal
Natural Gas
Solar Energy
Nuclear Energy
What is the acceleration due to gravity on Earth?
9.8m/s2
8.9m/s2
10.2m/s2
7.5m/s2
Which organelle is known as the powerhouse of the cell?
Nucleus
Mitochondria
Ribosome
Endoplasmic Reticulum
What is the process by which plants make their food using sunlight?
Respiration
Photosynthesis
Digestion
Transpiration
Which of the following elements is a noble gas?
Oxygen
Nitrogen
Helium
Hydrogen
