Science! Competition

This planet has no atmosphere.

Which of the following describes a pattern or an event in nature thatis always true?

A 10g sample of butter will melt at 34 C. What temperature will a 20g sample of butter melt?

What is the smallest particle of an element?

After sugar has been stirred into water, no sugar can be seen. What happened to it?

By studying a star's spectra, scientists can determine_____ found in the star's atmosphere.

Which processbreaks down food molecules and releases energy?

Which of the following statesof matter has a definite shape?

A change in which one or more substances are convertedinto new substances is a __________.

What is matterthat is made up of two or more different kinds of atoms joined by chemicalbonds?

Approximately what is theage of the Solar System?

At which time ofthe year is the number of daylight and dark hours equal?

Whatterm refers to matter that emits no light at any wavelength?

Short period comets come from the ______.

To evaluate the observations you make, you must use _____.

Anything that takes upspace and has mass is __________.

Which of the following describes most combustionreactions?

An explanation ofobservations of events based on knowledge gained from many experiments is a:

A comet develops a tail because of ___.

If an atom had 9 protons 10 neutrons and 8 electrons it would be 

What does the nucleus of an atom contain?

Which of the following isNOT a branch of Science?

In which organelle does cellular respiration take place?

What can be found in the nucleus of a cell?

In which organelle does protien synthesis take place?

Which is asubstance made up of only one kind of atom?

Science can NOT answer questions about _______.

Which organelle packages items?

____ is the largestplanet in the Solar system, and is the 5^th planet from the sun.

Anything other thana solvent in a solution is called the

The three branches of science are _____, Earth/Space, and physical. 

What should you do if you want to decrease the rate ofa chemical reaction?

The Moon orbits Earth and Earth orbits the Sun. Whatdoes the Sun orbit?

Long period comets come from the ______.

Which is asubstance made up of only one kind of atom?

What is the function of photosynthesis?

In the Sun’s convection zone ______

Scientists classify stars according to which of these?

Measuring the average energy of motion of the particles in a substanceis the same as measuring

You can separate sugar from sand because sugar is _____ and sand is not.

What term refers to cloudsof gas and dust where stars form?

What happens tothe hydrogen in the core of a star?

Which is the largest object in the Solar System?

New substances produced by a chemical reaction are_________.

How many dots wouldthere be in an electron diagram for silicon, one of the group 14 elements?

What do scientists think is the cause of Uranus’stilted orbit?

The variable in an experiment that is measured by the investigator isthe _____. 

Two of the inner planetsare ______.

Why can we see only one side of the Moon?

The Milky Way is amember of the Local Group which is a cluster of about how many galaxies?

Carbon dioxide enters a plantthrough its __________.

Which does NOT happen during a chemical reaction?

Which is produced by photosynthesis?

The yearly motion of Eartharound the Sun is called its 

Density depends on__________.

Which is a way to describe achemical reaction using chemical formulas and symbols?

If an atom had 9 protons 10 neutrons and 10 electrons it would be 

Solar energy trapped bygasses in Venus’s atmosphere causes ____.

What is represented by thedots in an electron dot diagram?

Liquids were poured in a glass and they separated into 4 layers.Which has the highest density?

What are the small openings on the epidermis of plantleaves called?

The chemical formula for a compound tells __________.

Why is Venus hot?    

Which is NOT a result ofscientific inquiry?

What does a high absolutemagnitude say about a star?

Venus and Earth bothexperience a _____ because of heat trapped by their atmospheres.

The process where light energy is trapped in a plant'schlorophyll and produces sugars is called

Approximately what is theage of the universe?

What should you do if you want to increase the rate ofa chemical reaction?

The smallest part of a compound that still has theproperties of that compound is a(n)

Which particle is directly involved in chamical changes?

What is thephrase given to the combination of several atomic nuclei into one largenucleus?

What is the diagram that shows luminosity and size of stars called?

When a candle burns, what energytransformation takes place?

During which phases of the Moon do spring tides occur?

One astronomical unit is approximately equal to_______.

Where are ribosomes produced? Pick the BEST answer.

What color of stars tend tohave the most mass?

Which of the following is a solution?