7th Grade - Science Palooza!

Blue pH indicator/litmus paper indicates the substance is

Science is fascinating because it helps us to understand _______ .

Atoms of the same element with a different number of neutrons are ___________ .

Which type of cancer is not spreading?

The ___________ is the engine of the cell, releasing energy for the cell to use.

In which moon mission did Buzz Aldrin, Neil Armstrong and Michael Collins go to the moon?

Na + Cl → NaCl is an example of a _____________ reaction.

The smallest piece of matter that has all the properties of an element is the ____ .

Our appendix is an example of a ___ structure that may have been used by our ancient ancestors.

This first female winner of a Nobel Prize developed the theory of radioactivity.

Which of these is NOT an amphibian?

Who is this pioneering primatologist?

In the 1950s, Jonas Salk developed a vaccine to fight the _____ virus, which had infected FDR.

Zn + 2HCl  →  ZnCl₂ + H₂ is an example of a __________________ reaction.

The atomic bombs dropped on Hiroshima and Nagasaki during WWII were powered by  ____ .

_________________ do not have an electrical charge.

Darwin thought that finches on the Galapagos were new species evolved from finches in ___  ___.

___________ is a single strand of nucleic acids that codes for synthesis of proteins.

Law of Conservation of Mass: # of atoms for each element in the products ______ # in reactants

________ are primitive & lack membrane-bound structures, such as a nucleus or mitochondria.

A substance with pH = 4 is

Meiosis is cell reproduction that produces unique _________ cells.

The speed of a reaction CAN"T be increased by   ___________ .

Which type of rock has fossils and forms when layers of sand or silt are compacted over time?

In the 1830s, he sailed to the Galapagos Islands on the HMS Beagle.

In the molecular formula 3H₂O, there are 

This bone-building element is used to make cement and cheese.

During a chemical reaction, the reactants make a product that is _______________ .

Which is NOT a potential cause of genetic mutations?

A _____________ is a section  of DNA that codes for a particular trait.

In both DNA and RNA, the nitrogenous base cytosine always pairs with ________ .

In 1610, this scientist discovered the 4 largest moons of Jupiter with a telescope he built.

Which is a property of acids?

In the reaction: NH₃ + H₂O →NH₄ + OH- , the molecule NH₃ is a/an

Mitosis is cell division that produces identical _________ cells.

In 1996, this sheep was the first mammal to be cloned.

Work by these scientists identified the structure of DNA, twisted-ladder called a __ __ .

This element has the highest melting point, over 3000°, and can take the form of diamond.

__________ and ___________ are found in plant cells, but not animal cells.

Which is NOT a reason for cell division?

Which element is named after the inventor of the periodic table?

A ______ is not a cell, but is a strand of hereditary material surrounded by a protein coating.