JUNE SCIENCE EXAM

SHOW YOUR WORK

What is the metric conversions table?

SHOW YOUR WORK

Calculating electricity

TRUE/FALSE

Matter

Anything that takes up space, has volume and mass.

Ex: solid; ice, liquid; water, gas; steam

TRUE/FALSE

Pure substance

Is made up of particles that are alike. Since all the particles are the same, all samples of a pure substance will always have the same properties.

TRUE/FALSE

How to read chemical formulas

Counting subscripts

H₂O

C₆H₁₂O₆

2 Hydrogen atoms, 1 oxygen atom

6 Carbon atoms, 12 Hydrogen atoms, 6 Oxygen atoms

TRUE/FALSE

Asexual reproduction

Mitosis: Requires a single parent, producing offspring identical to its parent

TRUE/FALSE

Sexual reproduction

Meiosis: two individuals contribute genetic material to produce offspring with unique genetic combinations

TRUE/FALSE

Do all cells have nucleus?

Difference of cell structure between animal cell and plant cell

No

animal: circular

plant: rectangular

TRUE/FALSE

Homogeneous mixture

provide example

A mixture where the molecules of each substance are equally mixed, and you can’t see the difference of the mixture.

ex: sugar dissolving water

TRUE/FALSE

Heterogeneous mixture

provide an example

A mixture where the substances aren’t evenly mixed

ex: salad

TRUE/FALSE

Static electricity

• a buildup of electrons

• stays in one place until it jumps to an object

• does not need a circuit

• Lightning is static electricity

TRUE/FALSE

Trait inheritance and alleles (dominant and recessive)

A gene is a segment of a chromosome, encoded by DNA. Genes come in pairs called alleles, and each allele is a variation of that gene.

homozygous dominant: AA

homozygous recessive: aa

Heterozygous: Aa

TRUE/FALSE

Solute/solvent

A solute is the substance that gets dissolved, and the solvent is the substance that dissolves the solute.

TRUE/FALSE

5 different types of asexual reproduction

1. Binary fission

2. budding

3. vegetative propagation

4. regeneration

5. sporulation

TRUE/FALSE

differences between genes, traits and alleles.

Genes are made of DNA that determine traits.

Traits are observable characteristics passed down from parents to offspring.

Alleles are different versions of a gene, which can result in variations of a trait

TRUE/FALSE

Covalent and Ionic bonds

(what happens to the atoms charges)

IONIC BOND:

• when an atom gains or loses electrons, the atom is no longer neutral

COVALENT BOND:

• chemical bond that involves the sharing of electrons to form electron pairs between atoms

Types of animals that use external fertilization

Fishes, amphibians, invertebrates

Ex: fishes release both eggs into the water during spawning

SHORT ANSWER

Review stages of PMAT

Prophase: first stage, chromosomes become visible, membrane disappears

Metaphase: chromosomes are pulled by spindle fibres

Anaphase: there are now twice as many chromosomes in the cell

Telophase: Nuclear membrane reappears, spindles disappear

Interphase: cell grows, replicates DNA and prepares for cell division

SHORT ANSWER

Diagram of PMAT

SHORT ANSWER

Know your cell organelles and their functions

SHORT ANSWER

Animal cell diagram

SHORT ANSWER

Circuit diagrams and matching them with identifiers (light bulbs, resistors, parallel/series circuit)

SHORT ANSWER

Male reproductive structure

SHORT ANSWER

Female reproductive structure

MULTIPLE CHOICE

Sexual reproduction

a form of reproduction where offspring are created by the combination of genetic material from two parents

MULTIPLE CHOICE

Pregnancy

The process of a woman carrying a developing baby (fetus) inside her womb

MULTIPLE CHOICE

chromosomes/sexual reproduction

During meiosis, the # of chromosomes is halved and gametes are produced, each containing a single set of chromosomes

MULTIPLE CHOICE

physical and chemical changes

physical: no new substance is formed

ex: Ice melting

chemical: always causes at least one new substance, with new properties, to be formed

ex: burning paper

MULTIPLE CHOICE

periodic table of elements and it’s arrangement

What is the relationship between element reactivity and position on the periodic table?

Why are elements categorized in families or groups?

The left side is more reactive than the right side.

Because they have the same # of valence electrons

MULTIPLE CHOICE

Electricity and charges and their attractions

(attract/repel/neutral attraction to charged objects)

MULTIPLE CHOICE

compounds and ionic bond

Compounds: pure substances that are made up of two or more elements chemically combined together

Ionic bond: an electrostatic attraction between two atoms where one atom transfers an electron to the other atom

CHEMISTRY

Bohr diagrams of an isotope of a given atom

CHEMISTRY

balancing chemical equations

GENETICS

punnett squares