Science enquiry
What is a hypothesis?
An educated guess or prediction based on observations.
What makes chloroplasts and the cell wall special?
They are structures only found in plant cells.
Units used to measure energy.
What are Joules (J)?
What are the tree states of matter?
Solid, liquid and gas.
What are the three types of rocks?
Sedimentary, Metamorphic and Igneous.
What are three pieces of lab equipment?
Beaker, thermometer, Bunsen burner.
What does mitochondria do?
Produce energy for the cell through cellular respiration.
The law of conservation of energy.
Energy cannot be created nor destroyed, it can only be transferred.
What is the difference between physical and chemical change?
The first one alters the state or appearance of a substance without changing its composition, while the second one creates new substances with different properties.
Which rocks are formed from the compaction and cementation of sediments over time.
Sedimentary rocks.
What is the Independent variable in an experiment?
What you deliberately change in the experiment.
What is the circulatory system's main function?
System in the human body responsible for transporting nutrients and oxygen.
On is the energy of motion, while the other one is stored energy.
What is the difference between kinetic and potential energy?
Name an element, a compound, and a mixture.
Oxygen, water and air.
What is the name of the theory that explains how rocks are continuously transformed between igneous, sedimentary, and metamorphic forms.
The rock cycle.
What are controlled variables?
What you keep the same throughout the experiment.
What are the three types of blood vessels?
Arteries, veins and capillaries
A toaster making electrical energy into thermal energy (heat) is an example of...
Energy transformation.
What are some indicators that a chemical reaction has occurred?
Color change, temperature change, gas production.
What is magma that's been expelled out of a volcano called?
Lava
What is one thing you can do to make sure your data is accurate and reliable?
Carry out many trials. Repeat the experiment a few times.
What is the main difference between Eukaryotic cells and Prokaryotic cells?
Eukaryotic cells have a nucleus
What is the difference between energy transfer and transformation?
In the first one, energy moves from one object to another but does not change type; in the second one, one type of energy is transformed into another.
Melting chocolate is an example of...
Physical change.
What are the three types of plate boundaries?
Divergent, Convergent, and Transform.